Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance at beginning of period at Nov. 30, 2015	$ 55	$ 108,188	$ 1,117	$ (1,085)	$ (13,466)	$ 94,809
Balance (in shares) at Nov. 30, 2015	5,541,029
Increase (Decrease) in Stockholders' Equity
Stock-based compensation		71				71
Net loss			(335)			(335)
Total other comprehensive income (loss), net of tax				(1,184)		(1,184)
Balance at end of period at Feb. 29, 2016	$ 55	108,259	782	(2,269)	(13,466)	93,361
Balance (in shares) at Feb. 29, 2016	5,541,029
Balance at beginning of period at Nov. 30, 2015	$ 55	108,188	1,117	(1,085)	(13,466)	94,809
Balance (in shares) at Nov. 30, 2015	5,541,029
Increase (Decrease) in Stockholders' Equity
Repurchase of common stock	$ (3,354)
Balance at end of period at Nov. 30, 2016	$ 55	108,438	179	(1,049)	(16,820)	90,803
Balance (in shares) at Nov. 30, 2016	5,541,029
Balance at beginning of period at Nov. 30, 2015	$ 55	108,188	1,117	(1,085)	(13,466)	94,809
Balance (in shares) at Nov. 30, 2015	5,541,029
Increase (Decrease) in Stockholders' Equity
Repurchase of common stock	$ (4,828)
Balance at end of period at Feb. 28, 2017	$ 55	108,520	(760)	(509)	(18,294)	89,012
Balance (in shares) at Feb. 28, 2017	5,541,029
Balance at beginning of period at Nov. 30, 2016	$ 55	108,438	179	(1,049)	(16,820)	90,803
Balance (in shares) at Nov. 30, 2016	5,541,029
Increase (Decrease) in Stockholders' Equity
Stock-based compensation		82				82
Repurchase of common stock	$ (1,474)				(1,474)	(1,474)
Net loss			(939)			(939)
Total other comprehensive income (loss), net of tax				540		540
Balance at end of period at Feb. 28, 2017	$ 55	$ 108,520	$ (760)	$ (509)	$ (18,294)	$ 89,012
Balance (in shares) at Feb. 28, 2017	5,541,029