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Note 7 - Assets Available for Sale and Assets Held for Lease - Summary of Assets Held for Lease (Details) - USD ($) | Nov. 30, 2017 | Nov. 30, 2016
--- | --- | ---
Assets held for lease | $ 1,217,164 |
West Union Facility [Member] |  |
Assets held for lease | 1,118,330 |
Modular Buildings [Member] |  |
Assets held for lease | $ 98,834 |

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- Definition The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84164653&loc=d3e41551-112718 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=artw_ModularBuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |