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Condensed Consolidated Statement of Stockholders' Equity (USD $)
In Thousands, except Share data
Total
USD ($)
Preferred Stock [Member]
USD ($)
Common Stock [Member]
USD ($)
Common Stock [Member]
Restricted Stock [Member]
Additional Paid-In Capital [Member]
USD ($)
Retained Earnings [Member]
USD ($)
Accumulated Other Comprehensive Income [Member]
USD ($)
Balance at December 31, 2011 at Dec. 31, 2011 $ 63,830       $ 29,636 $ 33,986 $ 208
Balance at December 31, 2011, shares at Dec. 31, 2011   1,247,700 6,202,485        
Net Income (Unaudited) 14,230            14,230   
Change in unrealized gain on available-for-sale securities, net of income taxes (unaudited) 872               872
Exercise of stock options (unaudited), shares 217,003    145,594        
Exercise of common stock warrants (unaudited), value 1,375         1,375      
Exercise of common stock warrants (unaudited), shares      161,642        
Excess tax benefit from common stock options exercised (unaudited) 437         437      
Conversion of preferred stock to common stock (unaudited)   (655,376) 655,376        
Issuance of Restricted Stock (unaudited) 153         153      
Stock Issued During Period, Shares, Share-based Compensation     1,840,000 200,000      
issuance of common stock (unaudited) 20,082       20,082    
Common stock dividends (unaudited) (2,793)            (2,793)   
Preferred stock dividends (unaudited) (244)            (244)   
Stock-based compensation (unaudited) 59         59      
Balance at June 30, 2012 (unaudited) at Jun. 30, 2012 $ 98,001    $ 0   $ 51,742 $ 45,179 $ 1,080
Ending Balance, shares (unaudited) at Jun. 30, 2012   592,324 9,205,097