Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance at beginning of period at Nov. 30, 2014	$ 55	$ 107,887	$ 2,238	$ (835)	$ (13,466)	$ 95,879
Balance (in shares) at Nov. 30, 2014	5,537,895
Increase (Decrease) in Stockholders' Equity
Stock-based compensation		192				192
Exercise of stock options		80				80
Exercise of stock options (shares)	3,134
Net income (loss)			261			261
Total other comprehensive loss, net of tax				459		459
Balance at end of period at Aug. 31, 2015	$ 55	108,159	2,499	(376)	(13,466)	96,871
Balance (in shares) at Aug. 31, 2015	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
Stock-based compensation		185				185
Repurchase of common stock					(1,951)	(1,951)
Net income (loss)			(763)			(763)
Total other comprehensive loss, net of tax				(1,772)		(1,772)
Balance at end of period at Aug. 31, 2016	$ 55	$ 108,373	$ 354	$ (2,857)	$ (15,417)	$ 90,508
Balance (in shares) at Aug. 31, 2016	5,541,029