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Note 8 - Loan and Credit Agreements (Details Textual) (USD $) | 12 Months Ended | 0 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 30, 2014 | May 31, 2013 | Nov. 30, 2013 | Jun. 01, 2009 | Feb. 01, 2013 | May 01, 2010 | May 29, 2014 | May 10, 2012 | May 01, 2013
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End | 3.50%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd |  |  |  |  |  |  |  |
Long-term Line of Credit | $ 2,569,109 us-gaap_LineOfCredit |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 8,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum | 3.50%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum |  |  |  |  |  |  |  |
Line of Credit Facility Borrowing Capacity Borrowing Base Percentage of Accounts Receivable | 75.00%artw_LineOfCreditFacilityBorrowingCapacityBorrowingBasePercentageOfAccountsReceivable |  |  |  |  |  |  |  |
Line of Credit Facility Borrowing Capacity Borrowing Base Minimum Percentage of Aggregate Receivables | 20.00%artw_LineOfCreditFacilityBorrowingCapacityBorrowingBaseMinimumPercentageOfAggregateReceivables |  |  |  |  |  |  |  |
Line of Credit Facility Borrowing Capacity Borrowing Base Percentage of Inventory | 50.00%artw_LineOfCreditFacilityBorrowingCapacityBorrowingBasePercentageOfInventory |  |  |  |  |  |  |  |
Line of Credit Facility Borrowing Capacity Borrowing Base Maximum Inventory Amount | 6,000,000 artw_LineOfCreditFacilityBorrowingCapacityBorrowingBaseMaximumInventoryAmount |  |  |  |  |  |  |  |
Long-term Debt | 7,233,226 us-gaap_LongTermDebt |  | 7,480,923 us-gaap_LongTermDebt |  |  |  |  |  |
IDEA Note 1 [Member] |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | 95,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = artw_IDEANote1Member |  |  |  |  |
IDEA Note 2 [Member] |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | 95,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = artw_IDEANote2Member |  |  |  |  |
Iowa Finance Authority [Member] |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  | 1,300,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = artw_IowaFinanceAuthorityMember |  |  |
Long-term Debt | 777,689 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = artw_IowaFinanceAuthorityMember |  | 904,662 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = artw_IowaFinanceAuthorityMember |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 2.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = artw_IowaFinanceAuthorityMember | 3.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = artw_IowaFinanceAuthorityMember |  |  |
Debt Instrument Covenant Debt Service Coverage Ratio |  |  |  |  | 1.5 artw_DebtInstrumentCovenantDebtServiceCoverageRatio / us-gaap_DebtInstrumentAxis = artw_IowaFinanceAuthorityMember |  |  |  |
US Bank [Member] |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | 1,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = artw_USBankMember | 880,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = artw_USBankMember |
Term Loan Final Payment |  |  |  |  |  |  | 890,000 artw_TermLoanFinalPayment / us-gaap_DebtInstrumentAxis = artw_USBankMember | 283,500 artw_TermLoanFinalPayment / us-gaap_DebtInstrumentAxis = artw_USBankMember |
Debt Instrument Covenant Interest Rate Increase in Event of Default | 5.00%artw_DebtInstrumentCovenantInterestRateIncreaseInEventOfDefault / us-gaap_DebtInstrumentAxis = artw_USBankMember |  |  |  |  |  |  |  |
US Bank New Loans [Member] |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | 6,319,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  | 2.98%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember
Debt Instrument, Periodic Payment | 93,850 us-gaap_DebtInstrumentPeriodicPayment / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid | 1,372,000 us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember |  |  |  |  |  |  |  |
Debt Instrument, Fee Amount |  | 130,000 us-gaap_DebtInstrumentFeeAmount / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember |  |  |  |  |  |  |
Debt Issuance Cost |  | 9,000 us-gaap_DebtIssuanceCosts / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember |  |  |  |  |  |  |
Debt Instrument Covenant Debt to Tangible Net Worth Ratio | 1.5 artw_DebtInstrumentCovenantDebtToTangibleNetWorthRatio / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember |  |  |  |  |  |  |  |
Debt Instrument Covenant Fixed Charge Coverage Ratio | 1.15 artw_DebtInstrumentCovenantFixedChargeCoverageRatio / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember |  |  |  |  |  |  |  |
Debt Instrument Covenant Interest Rate Increase in Event of Default | 5.00%artw_DebtInstrumentCovenantInterestRateIncreaseInEventOfDefault / us-gaap_DebtInstrumentAxis = artw_USBankNewLoansMember |  |  |  |  |  |  |  |
West Bank Loan1 [Member] |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  |  |  |  |  |  | 4,342,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = artw_WestBankLoan1Member
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  | 4.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = artw_WestBankLoan1Member
West Bank Loan2 [Member] |  |  |  |  |  |  |  |  |
Debt Disclosure [Abstract] |  |  |  |  |  |  |  |  |
Long-term Debt |  |  |  |  |  |  |  |  | $ 1,749,000 us-gaap_LongTermDebt / us-gaap_DebtInstrumentAxis = artw_WestBankLoan2Member
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  | 4.50%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = artw_WestBankLoan2Member

X
- Definition Debt instrument covenant debt service coverageratio + References No definition available. + Details
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- Definition Debt instrument covenant debt to tangible net worthratio + References No definition available. + Details
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- Definition Debt instrument covenant fixed charge coverageratio + References No definition available. + Details
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- Definition Debt instrument covenant interest rate increase in event ofdefault + References No definition available. + Details
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- Definition Line of credit facility borrowing capacity borrowing base maximum inventoryamount + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Line of credit facility borrowing capacity borrowing base minimum percentage of aggregatereceivables + References No definition available. + Details
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- Definition Line of credit facility borrowing capacity borrowing base percentage of accountsreceivable + References No definition available. + Details
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- Definition Line of credit facility borrowing capacity borrowing base percentage ofinventory + References No definition available. + Details
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- Definition Term loan finalpayment + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition Amount of the fee that accompanies borrowing money under the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Balance Type: | debit
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Minimum contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments including both interest and principal payments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt. + References No definition available. + Details
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- Definition Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees). + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Details
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