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Note 7 - Assets Available for Sale and Assets Held for Lease - Major Components Assets Available for Sale (Details) - USD ($) | Nov. 30, 2017 | Nov. 30, 2016
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Assets available for sale |  | $ 70,000
Ames, Iowa Powder Coat Print System [Member] |  |
Assets available for sale |  | $ 70,000

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- Definition Amount of assets held-for-sale that are not part of a disposal group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 15 -Paragraph 4 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=77912953&loc=d3e400-110220 + Details
Name: | us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis=artw_AmesIowaPowderCoatPrintSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |