Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Total
Balance at Nov. 30, 2012	$ 55	$ 107,056	$ 11,222	$ (721)	$ (13,466)	$ 104,146
Balance (in shares) at Nov. 30, 2012	5,527,911
Increase (Decrease) in Stockholders' Equity
Exercise of stock options		80				80
Exercise of stock options (shares)	6,776
Stock-based compensation		467				467
Dividends declared			(1,029)			(1,029)
Total other comprehensive income (loss), net of tax				272		272
Net income (loss)			(5,821)			(5,821)
Balance at Nov. 30, 2013	$ 55	107,603	4,372	(449)	(13,466)	98,115
Balance (in shares) at Nov. 30, 2013	5,534,687
Increase (Decrease) in Stockholders' Equity
Exercise of stock options		76				76
Exercise of stock options (shares)	3,208
Stock-based compensation		208				208
Dividends declared			(1,030)			(1,030)
Total other comprehensive income (loss), net of tax				(386)		(386)
Net income (loss)			(1,104)			(1,104)
Balance 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
Exercise of stock options		71				71
Exercise of stock options (shares)	3,134
Stock-based compensation		230				230
Dividends declared			(1,546)			(1,546)
Total other comprehensive income (loss), net of tax				(250)		(250)
Net income (loss)			425			425
Balance 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