Schedule of Carrying Amounts of Major classes of Assets and Liabilities Classified as Held-for-Sale (Details) $ in Thousands	May 31, 2018 USD ($)
Discontinued Operations And Disposal Groups [Abstract]
Receivables, net of allowance of $547	$ 12,212
Inventories, net	11,210
Prepaid expenses	178
Other current assets	55
Property, plant, and equipment, net	10,693
Intangibles, net	10,827
Goodwill	6,341
Total assets	51,516
Accounts payable	7,522
Other current liabilities	6,243
Other noncurrent liabilities	510
Total liabilities	14,275
Net assets	$ 37,241