CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock
Balance at Nov. 30, 2011	$ 64,757	$ 6,550	$ 105,512	$ (44,214)	$ (3,091)
Balance (in shares) at Nov. 30, 2011		65,477,000
Increase (Decrease) in Stockholders' Equity
Net income (loss) and comprehensive income (loss)	2,212			2,212
Exercise of stock options	20	2	18
Exercise of stock options (in shares)	20,000	20,000
Stock-based compensation, net of withholding taxes	745		745
Issuance of restricted stock		113	(113)
Issuance of restricted stock (in shares)		1,129,000
Balance at May. 31, 2012	67,734	6,665	106,162	(42,002)	(3,091)
Balance (in shares) at May. 31, 2012		66,626,000
Balance at Nov. 30, 2012	71,739	6,732	106,747	(38,649)	(3,091)
Balance (in shares) at Nov. 30, 2012	67,294,000	67,294,000
Increase (Decrease) in Stockholders' Equity
Net income (loss) and comprehensive income (loss)	(5,215)			(5,215)
Exercise of stock options	27	2	25
Exercise of stock options (in shares)	21,794	22,000
Stock-based compensation, net of withholding taxes	649		649
Issuance of restricted stock		109	(109)
Issuance of restricted stock (in shares)		1,088,000
Balance at May. 31, 2013	$ 67,200	$ 6,843	$ 107,312	$ (43,864)	$ (3,091)
Balance (in shares) at May. 31, 2013	68,404,000	68,404,000