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Note 11 - Employee Benefit Plans (Details Textual) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2021 | Nov. 30, 2020 | Nov. 30, 2019
Defined Contribution Plan, Employer Matching Contribution, Percent of Match |  | 25.00% |
Defined Contribution Plan Minimum Threshold Percentage of Employee Contributions |  | 4.00% |
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent |  | 1.00% |
Defined Contribution Plan, Cost |  | $ 32,464 | $ 36,253
Subsequent Event [Member] |  |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 50.00% |  |
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 3.00% |  |

X
- Definition Defined contribution plan minimum threshold percentage of employeecontributions + References No definition available. + Details
Name: | artw_DefinedContributionPlanMinimumThresholdPercentageOfEmployeeContributions
Namespace Prefix: | artw_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |