Schedule of Carrying Amounts of Major classes of Assets and Liabilities Classified as Held-for-Sale (Details) - USD ($) $ in Thousands	Aug. 31, 2019	Aug. 31, 2018
Discontinued Operations And Disposal Groups [Abstract]
Receivables, net of allowance of $0 and $244, respectively		$ 3,473
Inventories, net		3,676
Property, plant, and equipment, net	$ 2,744	3,637
Intangibles, net		51
Total assets	2,744	10,837
Accounts payable		1,476
Other current liabilities		948
Total liabilities		2,424
Net assets	$ 2,744	$ 8,413