Business Combinations (Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018
Business Combinations [Abstract]
Revenue	$ 442,286	$ 431,014
Net income	$ 19,641	$ 20,599
Net income per basic share (in dollars per share)	$ 0.44	$ 0.45
Net income per diluted share (in dollars per share)	$ 0.43	$ 0.45