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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - 9 months ended Sep. 30, 2015 - USD ($)
Total
Common Stock
Additional Paid- In Capital
Retained Earnings
Accumulated other comprehensive income
Treasury Stock
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 1,707,000   1,707,000      
Share-based compensation (in shares)   24,537        
Net shares repurchased for employee taxes (875,000)   (875,000)      
Share-based compensation tax benefit 170,000   170,000      
Treasury stock purchases (10,516,000)         (10,516,000)
Treasury stock retirement 0   (1,771,000) (1,550,000)   3,321,000
Treasury stock retirement (in shares)   (103,130)        
Net income 16,198,000     16,198,000    
Net change in unrealized gain on investments (391,000)       (391,000)  
Balance at Sep. 30, 2015 $ 86,813,000 $ 12,000 $ 407,000 $ 93,545,000 $ 44,000 $ (7,195,000)
Balance (in shares) at Sep. 30, 2015   12,288,763