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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Total
Common Stock
Additional Paid- In Capital
Retained Earnings
Accumulated other comprehensive income
Treasury Stock
Balance at Dec. 31, 2012 $ 90,786,000 $ 16,000 $ 40,191,000 $ 76,534,000 $ 553,000 $ (26,508,000)
Balance (in shares) at Dec. 31, 2012   15,525,955        
Share-based compensation 3,209,000   3,209,000      
Share-based compensation (in shares)   16,163        
Share-based compensation tax benefit 383,000   383,000      
Treasury stock purchases (20,081,000)         (20,081,000)
Treasury stock retirement 0 $ (3,000) (43,783,000) (2,803,000)   46,589,000
Treasury stock retirement (in shares)   (2,398,809)        
Net income 23,969,000     23,969,000    
Other comprehensive income (loss) 150,000       150,000  
Balance at Dec. 31, 2013 98,416,000 $ 13,000 0 97,700,000 703,000 0
Balance (in shares) at Dec. 31, 2013   13,143,309        
Share-based compensation 3,918,000   3,918,000      
Share-based compensation (in shares)   387,107        
Net shares repurchased for employee taxes (1,152,000)   (1,152,000)      
Net shares repurchased for employee taxes (in shares)   (37,634)        
Share-based compensation tax benefit 275,000   275,000      
Treasury stock purchases (33,894,000)         (33,894,000)
Treasury stock retirement 0 $ (1,000) (1,909,000) (31,984,000)   33,894,000
Treasury stock retirement (in shares)   (1,127,092)        
Net income 13,181,000     13,181,000    
Other comprehensive income (loss) (268,000)       (268,000)  
Balance at Dec. 31, 2014 80,476,000 $ 12,000 1,132,000 78,897,000 435,000 0
Balance (in shares) at Dec. 31, 2014   12,365,690        
Options exercised by executives and directors 44,000   44,000      
Options exercised by executives and directors (in shares)   1,666        
Share-based compensation 3,081,000   3,081,000      
Share-based compensation (in shares)   51,305        
Net shares repurchased for employee taxes (1,296,000)   (1,296,000)      
Net shares repurchased for employee taxes (in shares)   (40,368)        
Share-based compensation tax benefit 247,000   247,000      
Cash dividends declared to stockholders (3,013,000)     (3,013,000)    
Treasury stock purchases (10,516,000)         (10,516,000)
Treasury stock retirement 0   (3,208,000) (7,308,000)   10,516,000
Treasury stock retirement (in shares)   (364,341)        
Net income 20,058,000     20,058,000    
Other comprehensive income (loss) (497,000)       (497,000)  
Balance at Dec. 31, 2015 $ 88,584,000 $ 12,000 $ 0 $ 88,634,000 $ (62,000) $ 0
Balance (in shares) at Dec. 31, 2015   12,013,952