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Note 4 - Contract Receivables, Contract Assets and Contract Liabilities (Details Textual) - USD ($) |  | 6 Months Ended
--- | --- | ---
Nov. 30, 2020 | May 31, 2022 | May 31, 2021
Contract with Customer, Liability, Revenue Recognized During Period | $ 474,000 | $ 559,000 | $ 276,000

X
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due + References No definition available. + Details
Name: | artw_ContractWithCustomerLiabilityRevenueRecognizedDuringPeriod
Namespace Prefix: | artw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration