Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares authorized 1,000 1,000
Preferred stock, shares issued      
Preferred stock, shares outstanding      
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 50,000 50,000
Common stock, shares issued 27,425 26,612
Common stock, shares outstanding 25,994 25,181