Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Significant Non-cash transactions
Write off of fully depreciated fixed assets	$ 1,600	$ 2,233
Sale of fixed assets at net carrying value	1,991
Additional cash flow information
Cash paid during the year for interest	10,373	$ 10,639	$ 1,710
Cash paid during the year for income taxes	$ 255		$ 870