10-K Filing

NORTHERN TECHNOLOGIES INTERNATIONAL CORP CIK: 875582 FY 2025

Filing Information

Form Type	10-K
Accession Number	`0001171843-25-007481`
Period End Date	20250831
Filing Date	20251120
Fiscal Year	2025
Fiscal Period	FY
XBRL Instance	ntic20250831_10k_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 184 Income Statement 100 Cash Flow Statement 144 Stockholders Equity 48 Comprehensive Income 20

Balance Sheet 184 line items

Line Item	Tag	Value	Unit	Period
Accounts Receivable, Allowance for Credit Loss, Current	`AllowanceForDoubtfulAccountsReceivableCurrent`	$310.00K	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss, Current	`AllowanceForDoubtfulAccountsReceivableCurrent`	$310.00K	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss, Current	`AllowanceForDoubtfulAccountsReceivableCurrent`	$235.00K	USD	Point-in-time
Accounts Receivable, Allowance for Credit Loss, Current	`AllowanceForDoubtfulAccountsReceivableCurrent`	$235.00K	USD	Point-in-time
Preferred Stock, No Par Value (in dollars per share)	`PreferredStockNoParValue`	-	USD	Point-in-time
Preferred Stock, No Par Value (in dollars per share)	`PreferredStockNoParValue`	-	USD	Point-in-time
Preferred Stock, No Par Value (in dollars per share)	`PreferredStockNoParValue`	-	USD	Point-in-time
Preferred Stock, No Par Value (in dollars per share)	`PreferredStockNoParValue`	-	USD	Point-in-time
Preferred Stock, Shares Authorized (in shares)	`PreferredStockSharesAuthorized`	10,000.00	shares	Point-in-time
Preferred Stock, Shares Authorized (in shares)	`PreferredStockSharesAuthorized`	10,000.00	shares	Point-in-time
Preferred Stock, Shares Authorized (in shares)	`PreferredStockSharesAuthorized`	10,000.00	shares	Point-in-time
Preferred Stock, Shares Authorized (in shares)	`PreferredStockSharesAuthorized`	10,000.00	shares	Point-in-time
Preferred Stock, Shares Issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred Stock, Shares Issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred Stock, Shares Issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Preferred Stock, Shares Issued (in shares)	`PreferredStockSharesIssued`	0.00	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.95M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$4.95M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$7.25M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$7.25M	USD	Point-in-time
Preferred Stock, Shares Outstanding (in shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred Stock, Shares Outstanding (in shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred Stock, Shares Outstanding (in shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Preferred Stock, Shares Outstanding (in shares)	`PreferredStockSharesOutstanding`	0.00	shares	Point-in-time
Common Stock, Par or Stated Value Per Share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.02	USD	Point-in-time
Common Stock, Par or Stated Value Per Share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.02	USD	Point-in-time
Common Stock, Par or Stated Value Per Share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.02	USD	Point-in-time
Common Stock, Par or Stated Value Per Share (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.02	USD	Point-in-time
Common Stock, Shares Authorized (in shares)	`CommonStockSharesAuthorized`	15.00M	shares	Point-in-time
Common Stock, Shares Authorized (in shares)	`CommonStockSharesAuthorized`	15.00M	shares	Point-in-time
Common Stock, Shares Authorized (in shares)	`CommonStockSharesAuthorized`	15.00M	shares	Point-in-time
Common Stock, Shares Authorized (in shares)	`CommonStockSharesAuthorized`	15.00M	shares	Point-in-time
Trade, less allowance for credit losses of $235,000 and $310,000 as of August 31, 2025 and 2024	`TradeReceivablesExcludingJointVenturesNetCurrent`	$19.19M	USD	Point-in-time
Trade, less allowance for credit losses of $235,000 and $310,000 as of August 31, 2025 and 2024	`TradeReceivablesExcludingJointVenturesNetCurrent`	$19.19M	USD	Point-in-time
Trade, less allowance for credit losses of $235,000 and $310,000 as of August 31, 2025 and 2024	`TradeReceivablesExcludingJointVenturesNetCurrent`	$18.44M	USD	Point-in-time
Trade, less allowance for credit losses of $235,000 and $310,000 as of August 31, 2025 and 2024	`TradeReceivablesExcludingJointVenturesNetCurrent`	$18.44M	USD	Point-in-time
Common Stock, Shares, Outstanding (in shares)	`CommonStockSharesOutstanding`	9.47M	shares	Point-in-time
Common Stock, Shares, Outstanding (in shares)	`CommonStockSharesOutstanding`	9.47M	shares	Point-in-time
Common Stock, Shares, Outstanding (in shares)	`CommonStockSharesOutstanding`	9.48M	shares	Point-in-time
Common Stock, Shares, Outstanding (in shares)	`CommonStockSharesOutstanding`	9.48M	shares	Point-in-time
Fees for services provided to joint ventures	`FeesReceivableForServicesProvidedToJointVenturesCurrent`	$1.24M	USD	Point-in-time
Fees for services provided to joint ventures	`FeesReceivableForServicesProvidedToJointVenturesCurrent`	$1.24M	USD	Point-in-time
Fees for services provided to joint ventures	`FeesReceivableForServicesProvidedToJointVenturesCurrent`	$1.08M	USD	Point-in-time
Fees for services provided to joint ventures	`FeesReceivableForServicesProvidedToJointVenturesCurrent`	$1.08M	USD	Point-in-time
Common Stock, Shares, Issued (in shares)	`CommonStockSharesIssued`	9.47M	shares	Point-in-time
Common Stock, Shares, Issued (in shares)	`CommonStockSharesIssued`	9.47M	shares	Point-in-time
Common Stock, Shares, Issued (in shares)	`CommonStockSharesIssued`	9.48M	shares	Point-in-time
Common Stock, Shares, Issued (in shares)	`CommonStockSharesIssued`	9.48M	shares	Point-in-time
Income taxes	`IncomeTaxesReceivable`	$392.29K	USD	Point-in-time
Income taxes	`IncomeTaxesReceivable`	$392.29K	USD	Point-in-time
Income taxes	`IncomeTaxesReceivable`	$340.00K	USD	Point-in-time
Income taxes	`IncomeTaxesReceivable`	$340.00K	USD	Point-in-time
Inventories, net	`InventoryNet`	$14.39M	USD	Point-in-time
Inventories, net	`InventoryNet`	$14.39M	USD	Point-in-time
Inventories, net	`InventoryNet`	$15.53M	USD	Point-in-time
Inventories, net	`InventoryNet`	$15.53M	USD	Point-in-time
Prepaid expenses	`PrepaidExpenseCurrent`	$1.42M	USD	Point-in-time
Prepaid expenses	`PrepaidExpenseCurrent`	$1.42M	USD	Point-in-time
Prepaid expenses	`PrepaidExpenseCurrent`	$1.71M	USD	Point-in-time
Prepaid expenses	`PrepaidExpenseCurrent`	$1.71M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$41.58M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$41.58M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$44.34M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$44.34M	USD	Point-in-time
PROPERTY AND EQUIPMENT, NET	`PropertyPlantAndEquipmentNet`	$16.27M	USD	Point-in-time
PROPERTY AND EQUIPMENT, NET	`PropertyPlantAndEquipmentNet`	$16.27M	USD	Point-in-time
PROPERTY AND EQUIPMENT, NET	`PropertyPlantAndEquipmentNet`	$15.18M	USD	Point-in-time
PROPERTY AND EQUIPMENT, NET	`PropertyPlantAndEquipmentNet`	$15.18M	USD	Point-in-time
Investments in joint ventures	`EquityMethodInvestments`	$25.40M	USD	Point-in-time
Investments in joint ventures	`EquityMethodInvestments`	$25.40M	USD	Point-in-time
Investments in joint ventures	`EquityMethodInvestments`	$28.61M	USD	Point-in-time
Investments in joint ventures	`EquityMethodInvestments`	$28.61M	USD	Point-in-time
Deferred income tax, net	`DeferredIncomeTaxAssetsNet`	$544.46K	USD	Point-in-time
Deferred income tax, net	`DeferredIncomeTaxAssetsNet`	$544.46K	USD	Point-in-time
Deferred income tax, net	`DeferredIncomeTaxAssetsNet`	$503.57K	USD	Point-in-time
Deferred income tax, net	`DeferredIncomeTaxAssetsNet`	$503.57K	USD	Point-in-time
Intangible assets, net	`FiniteLivedIntangibleAssetsNet`	$5.68M	USD	Point-in-time
Intangible assets, net	`FiniteLivedIntangibleAssetsNet`	$5.68M	USD	Point-in-time
Intangible assets, net	`FiniteLivedIntangibleAssetsNet`	$8.83M	USD	Point-in-time
Intangible assets, net	`FiniteLivedIntangibleAssetsNet`	$8.83M	USD	Point-in-time
Goodwill	`Goodwill`	$4.78M	USD	Point-in-time
Goodwill	`Goodwill`	$4.78M	USD	Point-in-time
Goodwill	`Goodwill`	$4.78M	USD	Point-in-time
Goodwill	`Goodwill`	$4.78M	USD	Point-in-time
Operating lease right of use assets	`OperatingLeaseRightOfUseAsset`	$424.56K	USD	Point-in-time
Operating lease right of use assets	`OperatingLeaseRightOfUseAsset`	$424.56K	USD	Point-in-time
Operating lease right of use assets	`OperatingLeaseRightOfUseAsset`	$493.05K	USD	Point-in-time
Operating lease right of use assets	`OperatingLeaseRightOfUseAsset`	$493.05K	USD	Point-in-time
Total other assets	`AssetsNoncurrentOtherThanPropertyPlantAndEquipment`	$36.83M	USD	Point-in-time
Total other assets	`AssetsNoncurrentOtherThanPropertyPlantAndEquipment`	$36.83M	USD	Point-in-time
Total other assets	`AssetsNoncurrentOtherThanPropertyPlantAndEquipment`	$43.22M	USD	Point-in-time
Total other assets	`AssetsNoncurrentOtherThanPropertyPlantAndEquipment`	$43.22M	USD	Point-in-time
Total assets	`Assets`	$94.68M	USD	Point-in-time
Total assets	`Assets`	$94.68M	USD	Point-in-time
Total assets	`Assets`	$102.75M	USD	Point-in-time
Total assets	`Assets`	$102.75M	USD	Point-in-time
Line of credit	`LinesOfCreditCurrent`	$4.29M	USD	Point-in-time
Line of credit	`LinesOfCreditCurrent`	$4.29M	USD	Point-in-time
Line of credit	`LinesOfCreditCurrent`	$9.33M	USD	Point-in-time
Line of credit	`LinesOfCreditCurrent`	$9.33M	USD	Point-in-time
Term loan, current portion	`SecuredDebtCurrent`	$2.82M	USD	Point-in-time
Term loan, current portion	`SecuredDebtCurrent`	$2.82M	USD	Point-in-time
Term loan, current portion	`SecuredDebtCurrent`	$2.86M	USD	Point-in-time
Term loan, current portion	`SecuredDebtCurrent`	$2.86M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$6.39M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$6.39M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$8.04M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$8.04M	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$327.78K	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$327.78K	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$414.30K	USD	Point-in-time
Income taxes payable	`AccruedIncomeTaxesCurrent`	$414.30K	USD	Point-in-time
Payroll and related benefits	`EmployeeRelatedLiabilitiesCurrent`	$3.16M	USD	Point-in-time
Payroll and related benefits	`EmployeeRelatedLiabilitiesCurrent`	$3.16M	USD	Point-in-time
Payroll and related benefits	`EmployeeRelatedLiabilitiesCurrent`	$1.84M	USD	Point-in-time
Payroll and related benefits	`EmployeeRelatedLiabilitiesCurrent`	$1.84M	USD	Point-in-time
Other	`OtherAccruedLiabilitiesCurrent`	$574.88K	USD	Point-in-time
Other	`OtherAccruedLiabilitiesCurrent`	$574.88K	USD	Point-in-time
Other	`OtherAccruedLiabilitiesCurrent`	$1.07M	USD	Point-in-time
Other	`OtherAccruedLiabilitiesCurrent`	$1.07M	USD	Point-in-time
Current portion of operating leases	`OperatingLeaseLiabilityCurrent`	$325.12K	USD	Point-in-time
Current portion of operating leases	`OperatingLeaseLiabilityCurrent`	$325.12K	USD	Point-in-time
Current portion of operating leases	`OperatingLeaseLiabilityCurrent`	$344.74K	USD	Point-in-time
Current portion of operating leases	`OperatingLeaseLiabilityCurrent`	$344.74K	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$17.90M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$17.90M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$23.90M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$23.90M	USD	Point-in-time
Deferred income tax, net	`DeferredIncomeTaxLiabilitiesNet`	$1.50M	USD	Point-in-time
Deferred income tax, net	`DeferredIncomeTaxLiabilitiesNet`	$1.50M	USD	Point-in-time
Deferred income tax, net	`DeferredIncomeTaxLiabilitiesNet`	$1.51M	USD	Point-in-time
Deferred income tax, net	`DeferredIncomeTaxLiabilitiesNet`	$1.51M	USD	Point-in-time
Term loans, noncurrent portion	`SecuredLongTermDebt`	-	USD	Point-in-time
Term loans, noncurrent portion	`SecuredLongTermDebt`	-	USD	Point-in-time
Term loans, noncurrent portion	`SecuredLongTermDebt`	$466.98K	USD	Point-in-time
Term loans, noncurrent portion	`SecuredLongTermDebt`	$466.98K	USD	Point-in-time
Operating leases, less current portion	`OperatingLeaseLiabilityNoncurrent`	$99.44K	USD	Point-in-time
Operating leases, less current portion	`OperatingLeaseLiabilityNoncurrent`	$99.44K	USD	Point-in-time
Operating leases, less current portion	`OperatingLeaseLiabilityNoncurrent`	$148.31K	USD	Point-in-time
Operating leases, less current portion	`OperatingLeaseLiabilityNoncurrent`	$148.31K	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$1.60M	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$1.60M	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$2.13M	USD	Point-in-time
Total long-term liabilities	`LiabilitiesNoncurrent`	$2.13M	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Preferred stock, no par value; authorized 10,000 shares; none issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, no par value; authorized 10,000 shares; none issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, no par value; authorized 10,000 shares; none issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, no par value; authorized 10,000 shares; none issued and outstanding	`PreferredStockValue`	-	USD	Point-in-time
Common stock, $0.02 par value per share; authorized 15,000,000 shares; issued and outstanding 9,475,490 and 9,466,976, as of August 31, 2025 and 2024, respectively	`CommonStockValue`	$189.34K	USD	Point-in-time
Common stock, $0.02 par value per share; authorized 15,000,000 shares; issued and outstanding 9,475,490 and 9,466,976, as of August 31, 2025 and 2024, respectively	`CommonStockValue`	$189.34K	USD	Point-in-time
Common stock, $0.02 par value per share; authorized 15,000,000 shares; issued and outstanding 9,475,490 and 9,466,976, as of August 31, 2025 and 2024, respectively	`CommonStockValue`	$189.51K	USD	Point-in-time
Common stock, $0.02 par value per share; authorized 15,000,000 shares; issued and outstanding 9,475,490 and 9,466,976, as of August 31, 2025 and 2024, respectively	`CommonStockValue`	$189.51K	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$23.62M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$23.62M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$25.06M	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$25.06M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$53.77M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$53.77M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$52.27M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$52.27M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.38M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-6.38M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-5.37M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-5.37M	USD	Point-in-time
Stockholders equity	`StockholdersEquity`	$71.19M	USD	Point-in-time
Stockholders equity	`StockholdersEquity`	$71.19M	USD	Point-in-time
Stockholders equity	`StockholdersEquity`	$72.15M	USD	Point-in-time
Stockholders equity	`StockholdersEquity`	$72.15M	USD	Point-in-time
Non-controlling interests	`MinorityInterest`	$3.98M	USD	Point-in-time
Non-controlling interests	`MinorityInterest`	$3.98M	USD	Point-in-time
Non-controlling interests	`MinorityInterest`	$4.56M	USD	Point-in-time
Non-controlling interests	`MinorityInterest`	$4.56M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$70.70M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$70.70M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$75.18M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$75.18M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$76.71M	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$76.71M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$94.68M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$94.68M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$102.75M	USD	Point-in-time
Total liabilities and equity	`LiabilitiesAndStockholdersEquity`	$102.75M	USD	Point-in-time

Income Statement 100 line items

Line Item	Tag	Value	Unit	Period
Net sales	`Revenues`	$85.06M	USD	Annual
Net sales	`Revenues`	$85.06M	USD	Annual
Net sales	`Revenues`	$84.23M	USD	Annual
Net sales	`Revenues`	$84.23M	USD	Annual
Cost of goods sold	`CostOfGoodsAndServicesSold`	$51.27M	USD	Annual
Cost of goods sold	`CostOfGoodsAndServicesSold`	$51.27M	USD	Annual
Cost of goods sold	`CostOfGoodsAndServicesSold`	$52.56M	USD	Annual
Cost of goods sold	`CostOfGoodsAndServicesSold`	$52.56M	USD	Annual
Gross profit	`GrossProfit`	$33.79M	USD	Annual
Gross profit	`GrossProfit`	$33.79M	USD	Annual
Gross profit	`GrossProfit`	$31.68M	USD	Annual
Gross profit	`GrossProfit`	$31.68M	USD	Annual
Equity in income from joint ventures	`IncomeLossFromEquityMethodInvestments`	$4.22M	USD	Annual
Equity in income from joint ventures	`IncomeLossFromEquityMethodInvestments`	$4.22M	USD	Annual
Equity in income from joint ventures	`IncomeLossFromEquityMethodInvestments`	$3.54M	USD	Annual
Equity in income from joint ventures	`IncomeLossFromEquityMethodInvestments`	$3.54M	USD	Annual
Fees for services provided to joint ventures	`FeesForServicesProvidedToJointVentures`	$5.25M	USD	Annual
Fees for services provided to joint ventures	`FeesForServicesProvidedToJointVentures`	$5.25M	USD	Annual
Fees for services provided to joint ventures	`FeesForServicesProvidedToJointVentures`	$5.01M	USD	Annual
Fees for services provided to joint ventures	`FeesForServicesProvidedToJointVentures`	$5.01M	USD	Annual
Total joint venture operations	`IncomeFromJointVentureOperations`	$9.48M	USD	Annual
Total joint venture operations	`IncomeFromJointVentureOperations`	$9.48M	USD	Annual
Total joint venture operations	`IncomeFromJointVentureOperations`	$8.55M	USD	Annual
Total joint venture operations	`IncomeFromJointVentureOperations`	$8.55M	USD	Annual
Selling expenses	`SellingExpense`	$16.41M	USD	Annual
Selling expenses	`SellingExpense`	$16.41M	USD	Annual
Selling expenses	`SellingExpense`	$17.82M	USD	Annual
Selling expenses	`SellingExpense`	$17.82M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$14.18M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$14.18M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$14.79M	USD	Annual
General and administrative expenses	`GeneralAndAdministrativeExpense`	$14.79M	USD	Annual
Research and development expenses	`ResearchAndDevelopmentExpense`	$4.80M	USD	Annual
Research and development expenses	`ResearchAndDevelopmentExpense`	$4.80M	USD	Annual
Research and development expenses	`ResearchAndDevelopmentExpense`	$5.04M	USD	Annual
Research and development expenses	`ResearchAndDevelopmentExpense`	$5.04M	USD	Annual
Total operating expenses	`OperatingExpenses`	$35.39M	USD	Annual
Total operating expenses	`OperatingExpenses`	$35.39M	USD	Annual
Total operating expenses	`OperatingExpenses`	$37.65M	USD	Annual
Total operating expenses	`OperatingExpenses`	$37.65M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$7.87M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$7.87M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$2.57M	USD	Annual
OPERATING INCOME	`OperatingIncomeLoss`	$2.57M	USD	Annual
INTEREST INCOME	`InvestmentIncomeNet`	$118.83K	USD	Annual
INTEREST INCOME	`InvestmentIncomeNet`	$118.83K	USD	Annual
INTEREST INCOME	`InvestmentIncomeNet`	$308.05K	USD	Annual
INTEREST INCOME	`InvestmentIncomeNet`	$308.05K	USD	Annual
INTEREST EXPENSE	`InterestExpenseNonoperating`	$340.13K	USD	Annual
INTEREST EXPENSE	`InterestExpenseNonoperating`	$340.13K	USD	Annual
INTEREST EXPENSE	`InterestExpenseNonoperating`	$599.93K	USD	Annual
INTEREST EXPENSE	`InterestExpenseNonoperating`	$599.93K	USD	Annual
OTHER INCOME	`OtherNonoperatingIncome`	-	USD	Annual
OTHER INCOME	`OtherNonoperatingIncome`	-	USD	Annual
OTHER INCOME	`OtherNonoperatingIncome`	$1.14M	USD	Annual
OTHER INCOME	`OtherNonoperatingIncome`	$1.14M	USD	Annual
OTHER EXPENSE	`OtherNonoperatingExpense`	-	USD	Annual
OTHER EXPENSE	`OtherNonoperatingExpense`	-	USD	Annual
OTHER EXPENSE	`OtherNonoperatingExpense`	$386.79K	USD	Annual
OTHER EXPENSE	`OtherNonoperatingExpense`	$386.79K	USD	Annual
INCOME BEFORE INCOME TAX EXPENSE	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$7.65M	USD	Annual
INCOME BEFORE INCOME TAX EXPENSE	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$7.65M	USD	Annual
INCOME BEFORE INCOME TAX EXPENSE	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$3.03M	USD	Annual
INCOME BEFORE INCOME TAX EXPENSE	`IncomeLossIncludingPortionAttributableToNoncontrollingInterest`	$3.03M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$1.33M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$1.33M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$2.05M	USD	Annual
INCOME TAX EXPENSE	`IncomeTaxExpenseBenefit`	$2.05M	USD	Annual
NET INCOME	`ProfitLoss`	$6.32M	USD	Annual
NET INCOME	`ProfitLoss`	$6.32M	USD	Annual
NET INCOME	`ProfitLoss`	$986.39K	USD	Annual
NET INCOME	`ProfitLoss`	$986.39K	USD	Annual
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	`NetIncomeLossAttributableToNoncontrollingInterest`	$912.30K	USD	Annual
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	`NetIncomeLossAttributableToNoncontrollingInterest`	$912.30K	USD	Annual
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	`NetIncomeLossAttributableToNoncontrollingInterest`	$968.77K	USD	Annual
NET INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS	`NetIncomeLossAttributableToNoncontrollingInterest`	$968.77K	USD	Annual
NET INCOME ATTRIBUTABLE TO NTIC	`NetIncomeLoss`	$5.41M	USD	Annual
NET INCOME ATTRIBUTABLE TO NTIC	`NetIncomeLoss`	$5.41M	USD	Annual
NET INCOME ATTRIBUTABLE TO NTIC	`NetIncomeLoss`	$17.62K	USD	Annual
NET INCOME ATTRIBUTABLE TO NTIC	`NetIncomeLoss`	$17.62K	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.57	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.57	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	-	USD	Annual
Basic (in dollars per share)	`EarningsPerShareBasic`	-	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.55	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.55	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	-	USD	Annual
Diluted (in dollars per share)	`EarningsPerShareDiluted`	-	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	9.43M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	9.43M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	9.48M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	9.48M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	9.83M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	9.83M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	9.64M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	9.64M	shares	Annual
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.28	USD	Annual
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.28	USD	Annual
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.16	USD	Annual
CASH DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.16	USD	Annual

Cash Flow Statement 144 line items

Line Item	Tag	Value	Unit	Period
NET INCOME	`ProfitLoss`	$6.32M	USD	Annual
NET INCOME	`ProfitLoss`	$6.32M	USD	Annual
NET INCOME	`ProfitLoss`	$986.39K	USD	Annual
NET INCOME	`ProfitLoss`	$986.39K	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$1.38M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$1.38M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$1.36M	USD	Annual
Stock-based compensation	`ShareBasedCompensation`	$1.36M	USD	Annual
Depreciation expense	`Depreciation`	$1.16M	USD	Annual
Depreciation expense	`Depreciation`	$1.16M	USD	Annual
Depreciation expense	`Depreciation`	$979.98K	USD	Annual
Depreciation expense	`Depreciation`	$979.98K	USD	Annual
Amortization expense	`AdjustmentForAmortization`	$596.70K	USD	Annual
Amortization expense	`AdjustmentForAmortization`	$596.70K	USD	Annual
Amortization expense	`AdjustmentForAmortization`	$777.29K	USD	Annual
Amortization expense	`AdjustmentForAmortization`	$777.29K	USD	Annual
Loss on disposal of property and equipment	`GainLossOnDispositionOfAssets1`	-	USD	Annual
Loss on disposal of property and equipment	`GainLossOnDispositionOfAssets1`	-	USD	Annual
Loss on disposal of property and equipment	`GainLossOnDispositionOfAssets1`	$-77.98K	USD	Annual
Loss on disposal of property and equipment	`GainLossOnDispositionOfAssets1`	$-77.98K	USD	Annual
Change in allowance for credit losses	`ProvisionForDoubtfulAccounts`	$-233.54K	USD	Annual
Change in allowance for credit losses	`ProvisionForDoubtfulAccounts`	$-233.54K	USD	Annual
Change in allowance for credit losses	`ProvisionForDoubtfulAccounts`	$-75.00K	USD	Annual
Change in allowance for credit losses	`ProvisionForDoubtfulAccounts`	$-75.00K	USD	Annual
Equity in income from joint ventures	`IncomeLossFromEquityMethodInvestments`	$4.22M	USD	Annual
Equity in income from joint ventures	`IncomeLossFromEquityMethodInvestments`	$4.22M	USD	Annual
Equity in income from joint ventures	`IncomeLossFromEquityMethodInvestments`	$3.54M	USD	Annual
Equity in income from joint ventures	`IncomeLossFromEquityMethodInvestments`	$3.54M	USD	Annual
Dividends received from joint ventures	`ProceedsFromDividendsReceived`	$3.00M	USD	Annual
Dividends received from joint ventures	`ProceedsFromDividendsReceived`	$3.00M	USD	Annual
Dividends received from joint ventures	`ProceedsFromDividendsReceived`	$1.57M	USD	Annual
Dividends received from joint ventures	`ProceedsFromDividendsReceived`	$1.57M	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$336.25K	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$336.25K	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-50.98K	USD	Annual
Deferred income taxes	`IncreaseDecreaseInDeferredIncomeTaxes`	$-50.98K	USD	Annual
Trade	`IncreaseDecreaseInTradeReceivables`	$3.02M	USD	Annual
Trade	`IncreaseDecreaseInTradeReceivables`	$3.02M	USD	Annual
Trade	`IncreaseDecreaseInTradeReceivables`	$-941.73K	USD	Annual
Trade	`IncreaseDecreaseInTradeReceivables`	$-941.73K	USD	Annual
Fees for services provided to joint ventures	`IncreaseDecreaseInFeesReceivableForServicesProvidedToJointVentures`	$-61.58K	USD	Annual
Fees for services provided to joint ventures	`IncreaseDecreaseInFeesReceivableForServicesProvidedToJointVentures`	$-61.58K	USD	Annual
Fees for services provided to joint ventures	`IncreaseDecreaseInFeesReceivableForServicesProvidedToJointVentures`	$-157.46K	USD	Annual
Fees for services provided to joint ventures	`IncreaseDecreaseInFeesReceivableForServicesProvidedToJointVentures`	$-157.46K	USD	Annual
Dividends receivable from joint venture	`IncreaseDecreaseInDividendsReceivableFromJointVenture`	$-1.99M	USD	Annual
Dividends receivable from joint venture	`IncreaseDecreaseInDividendsReceivableFromJointVenture`	$-1.99M	USD	Annual
Dividends receivable from joint venture	`IncreaseDecreaseInDividendsReceivableFromJointVenture`	-	USD	Annual
Dividends receivable from joint venture	`IncreaseDecreaseInDividendsReceivableFromJointVenture`	-	USD	Annual
Income taxes	`IncreaseDecreaseInIncomeTaxesReceivable`	$311.73K	USD	Annual
Income taxes	`IncreaseDecreaseInIncomeTaxesReceivable`	$311.73K	USD	Annual
Income taxes	`IncreaseDecreaseInIncomeTaxesReceivable`	$418.00	USD	Annual
Income taxes	`IncreaseDecreaseInIncomeTaxesReceivable`	$418.00	USD	Annual
Inventories, net	`IncreaseDecreaseInInventories`	$1.33M	USD	Annual
Inventories, net	`IncreaseDecreaseInInventories`	$1.33M	USD	Annual
Inventories, net	`IncreaseDecreaseInInventories`	$1.28M	USD	Annual
Inventories, net	`IncreaseDecreaseInInventories`	$1.28M	USD	Annual
Prepaid expenses and other	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-308.06K	USD	Annual
Prepaid expenses and other	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-308.06K	USD	Annual
Prepaid expenses and other	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$300.06K	USD	Annual
Prepaid expenses and other	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$300.06K	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$449.01K	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$449.01K	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$1.47M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$1.47M	USD	Annual
Income tax payable	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-151.72K	USD	Annual
Income tax payable	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-151.72K	USD	Annual
Income tax payable	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$109.71K	USD	Annual
Income tax payable	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$109.71K	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$232.29K	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$232.29K	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-846.11K	USD	Annual
Accrued liabilities	`IncreaseDecreaseInAccruedLiabilities`	$-846.11K	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$5.88M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$5.88M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$2.44M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$2.44M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.92M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.92M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.53M	USD	Annual
Purchases of property and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.53M	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	-	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	-	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$20.00K	USD	Annual
Proceeds from sale of property and equipment	`ProceedsFromSaleOfPropertyPlantAndEquipment`	$20.00K	USD	Annual
Investments in patents and capitalized software costs	`PaymentsToAcquireIntangibleAssets`	$1.50M	USD	Annual
Investments in patents and capitalized software costs	`PaymentsToAcquireIntangibleAssets`	$1.50M	USD	Annual
Investments in patents and capitalized software costs	`PaymentsToAcquireIntangibleAssets`	$2.42M	USD	Annual
Investments in patents and capitalized software costs	`PaymentsToAcquireIntangibleAssets`	$2.42M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.42M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.42M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.93M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.93M	USD	Annual
Dividend received by non-controlling interest	`PaymentsToMinorityShareholders`	$1.26M	USD	Annual
Dividend received by non-controlling interest	`PaymentsToMinorityShareholders`	$1.26M	USD	Annual
Dividend received by non-controlling interest	`PaymentsToMinorityShareholders`	$280.00K	USD	Annual
Dividend received by non-controlling interest	`PaymentsToMinorityShareholders`	$280.00K	USD	Annual
Repayments of line of credit	`RepaymentsOfLinesOfCredit`	$36.98M	USD	Annual
Repayments of line of credit	`RepaymentsOfLinesOfCredit`	$36.98M	USD	Annual
Repayments of line of credit	`RepaymentsOfLinesOfCredit`	$26.95M	USD	Annual
Repayments of line of credit	`RepaymentsOfLinesOfCredit`	$26.95M	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	-	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$538.09K	USD	Annual
Proceeds from issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$538.09K	USD	Annual
Proceeds from line of credit	`ProceedsFromLinesOfCredit`	$37.67M	USD	Annual
Proceeds from line of credit	`ProceedsFromLinesOfCredit`	$37.67M	USD	Annual
Proceeds from line of credit	`ProceedsFromLinesOfCredit`	$31.99M	USD	Annual
Proceeds from line of credit	`ProceedsFromLinesOfCredit`	$31.99M	USD	Annual
Dividends paid on NTIC common stock	`PaymentsOfDividendsCommonStock`	$2.64M	USD	Annual
Dividends paid on NTIC common stock	`PaymentsOfDividendsCommonStock`	$2.64M	USD	Annual
Dividends paid on NTIC common stock	`PaymentsOfDividendsCommonStock`	$1.52M	USD	Annual
Dividends paid on NTIC common stock	`PaymentsOfDividendsCommonStock`	$1.52M	USD	Annual
Proceeds from employee stock purchase plan	`ProceedsFromStockPlans`	$79.97K	USD	Annual
Proceeds from employee stock purchase plan	`ProceedsFromStockPlans`	$79.97K	USD	Annual
Proceeds from employee stock purchase plan	`ProceedsFromStockPlans`	$81.50K	USD	Annual
Proceeds from employee stock purchase plan	`ProceedsFromStockPlans`	$81.50K	USD	Annual
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$168.52K	USD	Annual
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	$168.52K	USD	Annual
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	-	USD	Annual
Proceeds from exercise of stock options	`ProceedsFromStockOptionsExercised`	-	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.96M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-2.96M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$3.86M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$3.86M	USD	Annual
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$38.33K	USD	Annual
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$38.33K	USD	Annual
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$-75.93K	USD	Annual
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	`EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$-75.93K	USD	Annual
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-453.99K	USD	Annual
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-453.99K	USD	Annual
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$2.30M	USD	Annual
NET INCREASE IN CASH AND CASH EQUIVALENTS	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$2.30M	USD	Annual
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$5.41M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$5.41M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$4.95M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$4.95M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$7.25M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$7.25M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$5.41M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$5.41M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$4.95M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$4.95M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$7.25M	USD	Point-in-time
CASH AND CASH EQUIVALENTS AT END OF YEAR	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations`	$7.25M	USD	Point-in-time

Stockholders Equity 48 line items

Line Item	Tag	Value	Unit	Period
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$70.70M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$70.70M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$75.18M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$75.18M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$76.71M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$76.71M	USD	Point-in-time
Stock options exercised	`StockIssuedDuringPeriodValueStockOptionsExercised`	$168.52K	USD	Annual
Stock options exercised	`StockIssuedDuringPeriodValueStockOptionsExercised`	$168.52K	USD	Annual
Stock options exercised	`StockIssuedDuringPeriodValueStockOptionsExercised`	-	USD	Annual
Stock options exercised	`StockIssuedDuringPeriodValueStockOptionsExercised`	-	USD	Annual
Stock issued for employee stock purchase plan (in shares)	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	3,496.00	shares	Point-in-time
Stock issued for employee stock purchase plan (in shares)	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	3,496.00	shares	Point-in-time
Stock issued for employee stock purchase plan (in shares)	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	3,284.00	shares	Point-in-time
Stock issued for employee stock purchase plan (in shares)	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	3,284.00	shares	Point-in-time
Stock issued for employee stock purchase plan (in shares)	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	3,527.00	shares	Point-in-time
Stock issued for employee stock purchase plan (in shares)	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	3,527.00	shares	Point-in-time
Stock issued for employee stock purchase plan (in shares)	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	3,856.00	shares	Point-in-time
Stock issued for employee stock purchase plan (in shares)	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	3,856.00	shares	Point-in-time
Stock issued for employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$79.97K	USD	Annual
Stock issued for employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$79.97K	USD	Annual
Stock issued for employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$81.50K	USD	Annual
Stock issued for employee stock purchase plan	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$81.50K	USD	Annual
Stock option expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions`	$1.38M	USD	Annual
Stock option expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions`	$1.38M	USD	Annual
Stock option expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions`	$1.36M	USD	Annual
Stock option expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions`	$1.36M	USD	Annual
Dividends paid to stockholders	`Dividends`	$2.64M	USD	Annual
Dividends paid to stockholders	`Dividends`	$2.64M	USD	Annual
Dividends paid to stockholders	`Dividends`	$1.52M	USD	Annual
Dividends paid to stockholders	`Dividends`	$1.52M	USD	Annual
Dividend received by non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$1.26M	USD	Annual
Dividend received by non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$1.26M	USD	Annual
Dividend received by non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$280.00K	USD	Annual
Dividend received by non-controlling interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$280.00K	USD	Annual
Net income	`ProfitLoss`	$6.32M	USD	Annual
Net income	`ProfitLoss`	$6.32M	USD	Annual
Net income	`ProfitLoss`	$986.39K	USD	Annual
Net income	`ProfitLoss`	$986.39K	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$422.86K	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$422.86K	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$904.79K	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$904.79K	USD	Annual
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$70.70M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$70.70M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$75.18M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$75.18M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$76.71M	USD	Point-in-time
BALANCE	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$76.71M	USD	Point-in-time

Comprehensive Income 20 line items

Line Item	Tag	Value	Unit	Period
NET INCOME	`ProfitLoss`	$6.32M	USD	Annual
NET INCOME	`ProfitLoss`	$6.32M	USD	Annual
NET INCOME	`ProfitLoss`	$986.39K	USD	Annual
NET INCOME	`ProfitLoss`	$986.39K	USD	Annual
OTHER COMPREHENSIVE INCOME FOREIGN CURRENCY TRANSLATION ADJUSTMENT, (NET OF TAX)	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$422.86K	USD	Annual
OTHER COMPREHENSIVE INCOME FOREIGN CURRENCY TRANSLATION ADJUSTMENT, (NET OF TAX)	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$422.86K	USD	Annual
OTHER COMPREHENSIVE INCOME FOREIGN CURRENCY TRANSLATION ADJUSTMENT, (NET OF TAX)	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$904.79K	USD	Annual
OTHER COMPREHENSIVE INCOME FOREIGN CURRENCY TRANSLATION ADJUSTMENT, (NET OF TAX)	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$904.79K	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$6.74M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$6.74M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$1.89M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$1.89M	USD	Annual
COMPREHENSIVE INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS, (NET OF TAX)	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$893.88K	USD	Annual
COMPREHENSIVE INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS, (NET OF TAX)	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$893.88K	USD	Annual
COMPREHENSIVE INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS, (NET OF TAX)	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$862.64K	USD	Annual
COMPREHENSIVE INCOME ATTRIBUTABLE TO NON-CONTROLLING INTERESTS, (NET OF TAX)	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$862.64K	USD	Annual
COMPREHENSIVE INCOME ATTRIBUTABLE TO NTIC	`ComprehensiveIncomeNetOfTax`	$5.85M	USD	Annual
COMPREHENSIVE INCOME ATTRIBUTABLE TO NTIC	`ComprehensiveIncomeNetOfTax`	$5.85M	USD	Annual
COMPREHENSIVE INCOME ATTRIBUTABLE TO NTIC	`ComprehensiveIncomeNetOfTax`	$1.03M	USD	Annual
COMPREHENSIVE INCOME ATTRIBUTABLE TO NTIC	`ComprehensiveIncomeNetOfTax`	$1.03M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.