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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY AND ACCUMULATED OTHER COMPREHENSIVE INCOME (USD $)
Total
Common Stock
Additional Paid-In Capital
Retained Earnings
Accumulated other comp income/(loss)
Treasury Stock
Beginning Balance at Dec. 31, 2008 $ 34,069,000 $ 15,000 $ 25,250,000 $ 11,149,000 $ (389,000) $ (1,956,000)
Beginning Balance (in shares) at Dec. 31, 2008   14,585,960        
Common stock issued to directors (in shares)   49,000        
Common stock issued to directors 207,100 100 207,000      
Exercise of stock options (in shares)   133,334        
Exercise of stock options 100 100 331,000     (331,000)
Warrants converted to common stock (in shares)   44,647        
Warrants converted to common stock 214,100 100 214,000      
Restricted shares issued to executives and directors (in shares)   586,000        
Restricted shares issued to executives and directors 700 700        
Share-based compensation tax benefit 303,000   303,000      
Share-based compensation to executives and directors 2,151,000   2,151,000      
Receipt of treasury stock as payment of note receivable (931,000)         (931,000)
Purchase of treasury stock (102,000)         (102,000)
Comprehensive income:            
Net income 11,357,000     11,357,000    
Net change in unrealized gain (loss) on investments, net 548,000       548,000  
Comprehensive income 11,905,000          
Ending Balance at Dec. 31, 2009 47,817,000 16,000 28,456,000 22,506,000 159,000 (3,320,000)
Ending Balance (in shares) at Dec. 31, 2009   15,398,941        
Common stock issued to directors (in shares)   5,660        
Common stock issued to directors 150,000   150,000      
Exercise of stock options (in shares)   10,000        
Exercise of stock options 34,000   34,000      
Restricted shares issued to executives and directors (in shares)   16,500        
Share-based compensation tax benefit 1,770,000   1,770,000      
Share-based compensation to executives and directors 2,528,000   2,528,000      
Purchase of treasury stock (35,000)         (35,000)
Comprehensive income:            
Net income 19,611,000     19,611,000    
Net change in unrealized gain (loss) on investments, net 81,000       81,000  
Comprehensive income 19,692,000          
Ending Balance at Dec. 31, 2010 71,956,000 16,000 32,938,000 42,117,000 240,000 (3,355,000)
Ending Balance (in shares) at Dec. 31, 2010   15,431,101        
Restricted shares issued to executives and directors (in shares)   79,084        
Share-based compensation tax benefit 614,000   614,000      
Share-based compensation to executives and directors 2,524,000   2,524,000      
Purchase of treasury stock (20,389,000)         (20,389,000)
Comprehensive income:            
Net income 18,541,000     18,541,000    
Net change in unrealized gain (loss) on investments, net 156,000       156,000  
Comprehensive income 18,697,000          
Ending Balance at Dec. 31, 2011 $ 73,402,000 $ 16,000 $ 36,076,000 $ 60,658,000 $ 396,000 $ (23,744,000)
Ending Balance (in shares) at Dec. 31, 2011   15,510,185