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Note 8 - Product Warranty (Details Textual)	9 Months Ended
Note 8 - Product Warranty (Details Textual)	Aug. 31, 2018
Standard Product Warrant Term	1 year

X

- Definition

Approximate term of the product warranty,

+ References

No definition available.

+ Details

Name:	artw_StandardProductWarrantyTerm
Namespace Prefix:	artw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration