Investment - Centaur Media plc (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012
Investments
Shares of common stock held in Centaur Media	1,952,462			5,277,150
Pre-Tax Gain on sale of common stock in Centaur Media plc		$ 318	$ 1,088
Shares of Centaur Media common stock sold		500,000	2,824,688
Proceeds from sale of shares		$ 566	$ 2,487
Investment in Centaur Media
Dividend income	$ 83	82	$ 110
Fair value	1,970	1,924
Cost	1,014	1,014
Unrealized gain	$ 956	$ 910