Schedule II-Valuation and Qualifying Accounts and Reserves (Details) - Valuation allowance on deferred tax asset - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Reserves:
Balance at Beginning of Year	$ 1,514	$ 345	$ 395
Charged to Cost and Expenses	(151)	180	(50)
Charged to Other Accounts		989
Balance at End of Year	$ 1,363	$ 1,514	$ 345