CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
May 31, 2014
Nov. 30, 2013
Statement of Financial Position [Abstract]    
Preferred Stock, par value, per share $ 0.001 $ 0.001
Preferred Stock, shares authorized 5,000 5,000
Preferred Stock, shares issued 0 0
Preferred Stock, shares outstanding 0 0
Common Stock, par value, per share $ 0.001 $ 0.001
Common Stock, shares authorized 100,000 100,000
Common Stock, shares issued 39,572 38,052
Treasury Stock, shares 868 842