Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_BusinessExitCosts1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Basis of Financial Statement Presentation (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended	9 Months Ended
	Jun. 25, 2018	Nov. 30, 2019	Nov. 30, 2018	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2019
Exit costs related to facilities		$ 649	$ 260
Pawtucket, RI manufacturing facility
Transition period	2 months
Exit costs related to facilities			260	$ 1,272		$ 0
Granite Falls Location
Exit costs related to facilities		499			$ 1,260
Anticipated future exit costs		200
Other income (expense)
Foreign currency translation gain (loss)		(501)	$ 52
Engineering Studies related to Facility Consolidation and Rationalization Initiative
Business development cost		$ 150