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Consolidated Statements of Stockholders' Equity (USD $)
In Thousands, except Share data
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive (Loss) Income
Retained Earnings
Balance at Dec. 31, 2010 $ 95,365 $ 102 $ 25,164 $ (65) $ 70,164
Balance, shares at Dec. 31, 2010   10,202,000      
Common stock issued on exercise of options, shares   3,000      
Common stock issued on exercise of options 5 0 5 0 0
Stock option compensation expense, net of tax, shares   0      
Stock option compensation expense, net of tax 192 0 192 0 0
Tax benefit of stock option exercises 13 0 13 0 0
Unrealized holding gains on marketable securities, net of tax 35 0 0 35 0
Net income 8,995 0 0 0 8,995
Repurchase of common stock, shares   (65,000)      
Repurchase of common stock, value (923) (1) (922) 0 0
Cash dividend on common stock (1,837) 0 0 0 (1,837)
Balance at Jun. 30, 2011 101,845 101 24,452 (30) 77,322
Balance, shares at Jun. 30, 2011 10,140,000        
Balance at Dec. 31, 2011 101,655 99 20,943 (34) 80,647
Balance, shares at Dec. 31, 2011   9,871,000      
Common stock issued on exercise of options, shares 118,472 118,000      
Common stock issued on exercise of options 1,689 1 1,688 0 0
Stock option compensation expense, net of tax, shares   0      
Stock option compensation expense, net of tax 285 0 285 0 0
Tax benefit of stock option exercises 264 0 264 0 0
Unrealized holding gains on marketable securities, net of tax 43 0 0 43 0
Net income 1,530 0 0 0 1,530
Repurchase of common stock, shares   (2,986,000)      
Repurchase of common stock, value (60,232) (30) (22,864) 0 (37,338)
Cash dividend on common stock (1,868) 0 0 0 (1,868)
Balance at Jun. 30, 2012 $ 43,366 $ 70 $ 316 $ 9 $ 42,971
Balance, shares at Jun. 30, 2012   7,003,000