Note 9 - Product Warranty - Changes in Product Warranty Liability-parentheticals (Details) - USD ($)	3 Months Ended	9 Months Ended
Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Settlements / adjustments	$ (69,721)	$ (75,204)	$ (277,734)	$ (177,470)

Amount of decrease (increase) in the standard product warranty accrual from payments and adjustments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.

No definition available.

Name:	artw_StandardProductWarrantyAccrualDecreaseIncreaseForPaymentsAndAdjustments
Namespace Prefix:	artw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration