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Consolidated Statements of Stockholders' Equity (Unaudited) (USD $)
In Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income (Loss)
Retained Earnings
Balance - Beginning at Dec. 31, 2011 $ 101,655 $ 99 $ 20,943 $ (34) $ 80,647
Balance - Beginning, shares at Dec. 31, 2011   9,871      
Common stock issued on exercise of options, shares   106      
Common stock issued on exercise of options 1,557 1 1,556 0 0
Stock option compensation expense, net of tax, shares   0      
Stock option compensation expense, net of tax 140 0 140 0 0
Tax benefit of stock option exercises 225 0 225 0 0
Repurchase of common stock, shares   (2,986)      
Repurchase of common stock (60,232) (30) (22,864) 0 (37,338)
Cash dividends on common stock (1,098) 0 0 0 (1,098)
Unrealized holding losses on marketable securities, net of tax 41 0 0 41 0
Net loss (2,213) 0 0 0 (2,213)
Balance - Ending at Mar. 31, 2012 40,075 70 0 7 39,998
Balance - Ending, shares at Mar. 31, 2012   6,991      
Balance - Beginning at Dec. 31, 2012 53,896 70 913 23 52,890
Balance - Beginning, shares at Dec. 31, 2012   7,017      
Common stock issued on exercise of options, shares   24      
Common stock issued on exercise of options 204 0 204 0 0
Stock option compensation expense, net of tax, shares   0      
Stock option compensation expense, net of tax 183 0 183 0 0
Tax benefit of stock option exercises 280 0 280 0 0
Cash dividends on common stock (912) 0 0 0 (912)
Unrealized holding losses on marketable securities, net of tax (4) 0 0 (4) 0
Net loss (2,549) 0 0 0 (2,549)
Balance - Ending at Mar. 31, 2013 $ 51,098 $ 70 $ 1,580 $ 19 $ 49,429
Balance - Ending, shares at Mar. 31, 2013   7,041