Quarterly report pursuant to sections 13 or 15(d)

Shareholders' Equity - Repurchase Program and Warrants (Details)

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Shareholders' Equity - Repurchase Program and Warrants (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
0 Months Ended 3 Months Ended 9 Months Ended 76 Months Ended
Aug. 15, 2013
Sep. 30, 2013
Sep. 30, 2013
Sep. 30, 2013
Oct. 31, 2011
Mar. 31, 2007
Capital Unit [Line Items]            
Shares authorized for repurchase           2,500,000
Shares authorized for additional repurchase         5,000,000  
Shares repurchased, shares 3,000,000 92,699 563,628 3,545,595    
Shares repurchased, value   $ 181 $ 925 $ 5,578    
Cost per share $ 1.67          
Options forfeited   47,295 338,696      
Unrecognized compensation cost for stock based compensation   10,325 10,325 10,325    
Unrecognized compensation cost for stock based compensation, period of recognition     2 years 2 months 12 days      
Stock options exercise   14,939 19,439      
Intrinsic value of options exercised   11 15      
Warrant exercise     260,000      
Intrinsic value of warrant exercised     169      
Awards granted during 2012
           
Capital Unit [Line Items]            
Unrecognized compensation cost for stock based compensation   $ 1,587 $ 1,587 $ 1,587    
Unrecognized compensation cost for stock based compensation, period of recognition     2 years 9 months 18 days