Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Details)

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Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Reconciliation of net earnings to basic earnings per share and diluted earnings per share        
Net income $ 551 $ 1,925 $ 623 $ 5,776
Basic number of weighted-average shares outstanding 32,296,636 31,760,998 32,102,386 31,589,279
Effect of dilutive shares:        
Options to purchase common stock 889,373 919,465 897,644 1,052,340
Common warrants 127,324 190,806 138,889 264,451
Unvested restricted stock 45,373   40,125 31,531
Diluted number of weighted-average shares outstanding 33,358,706 32,871,269 33,179,044 32,937,601
Net income per share:        
Basic $ 0.02 $ 0.06 $ 0.02 $ 0.18
Diluted $ 0.02 $ 0.06 $ 0.02 $ 0.18