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STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Treasury stock
Accumulated Other Comprehensive Income (Loss)
Retained Earnings
Beginning balance at Dec. 31, 2013 $ 190,895 $ 21 $ 204,415 $ (41,005) $ (81) $ 27,545
Beginning balance (in shares) at Dec. 31, 2013   21,181,730        
Net income (loss) (819)         (819)
Other comprehensive income (loss) (355)       (355)  
Equity-based compensation $ 5,011   5,011      
Purchase of Treasury stock, (in shares) (1,227,148) (1,227,148)        
Purchase of Treasury stock $ (18,657) $ (1)   (18,656)    
Issuance of Treasury stock upon exercise of stock-based awards (in shares)   297,908        
Issuance of Treasury stock upon exercise of stock-based awards 2,974 [1]   4,953   (1,979)
Ending balance at Dec. 31, 2014 179,049 $ 20 209,426 (54,708) (436) 24,747
Ending balance (in shares) at Dec. 31, 2014   20,252,490        
Accumulated other comprehensive loss, net (436)          
Net income (loss) 6,267         6,267
Other comprehensive income (loss) 17       17  
Equity-based compensation 4,015   4,015      
Tax benefit related to exercise of stock-based awards $ 112   112      
Purchase of Treasury stock, (in shares) (508,931) (508,931)        
Purchase of Treasury stock $ (10,078)     (10,078)    
Issuance of Treasury stock upon exercise of stock-based awards (in shares)   786,374        
Issuance of Treasury stock upon exercise of stock-based awards 6,713 $ 1 (4,809) 12,988   (1,467)
Ending balance at Dec. 31, 2015 $ 186,095 $ 21 208,744 (51,798) (419) 29,547
Ending balance (in shares) at Dec. 31, 2015 20,529,933 20,529,933        
Accumulated other comprehensive loss, net $ (419)          
Net income (loss) 13,100         13,100
Other comprehensive income (loss) (78)       (78)  
Equity-based compensation $ 6,236   6,236      
Purchase of Treasury stock, (in shares) (180,013) (180,013)        
Purchase of Treasury stock $ (3,417) $ (1)   (3,416)    
Issuance of Treasury stock upon exercise of stock-based awards (in shares)   923,580        
Issuance of Treasury stock upon exercise of stock-based awards 9,615 $ 1 (2,877) 15,707   (3,216)
Ending balance at Dec. 31, 2016 $ 211,551 $ 21 $ 212,103 $ (39,507) (497) $ 39,431
Ending balance (in shares) at Dec. 31, 2016 21,273,500 21,273,500        
Accumulated unrealized loss from available-for-sale securities, net of taxes of $77         (502)  
Accumulated unrealized gain from hedging activities, net of taxes of $1         5  
Accumulated other comprehensive loss, net $ (497)       $ (497)  
[1] Represent an amount lower than $1.