Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)
In Thousands, except Share data, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 276 $ 25
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 27,659,136 27,517,665
Common stock, shares outstanding 27,339,636 27,198,165
Treasury stock, shares 319,500 319,500