Stockholders' Equity (Narrative) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock par value $ 0.001 $ 0.001
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, shares authorized 100,000,000 100,000,000
Common stock, par value $ 0.001 $ 0.001
Common stock, shares issued 25,262,791 24,302,749
Common stock, shares outstanding 21,647,098 20,692,558
Acquisition of treasury stock, (in shares) 5,000 5,000
Acquisition of treasury stock $ 32 $ 7
Restricted stock forfeited and transferred to treasury stock 0 3,000
Treasury Stock [Member]
   
Acquisition of treasury stock, (in shares) 5,000 8,000
Acquisition of treasury stock $ 32,000 $ 7,000