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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Loss
(Accumulated Deficit)
Total
Balance at Dec. 31, 2013 $ 226 $ 101,293 $ (125) $ (16,244) $ 85,150
Balance (in shares) at Dec. 31, 2013 22,574,000        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Exercise of common stock options $ 1 468     469
Exercise of common stock options (in shares) 118,000        
Issuance of unrestricted stock $ 1 (1)      
Issuance of unrestricted stock (in shares) 141,000        
Shares surrendered by employees to pay taxes related to unrestricted stock   (205)     (205)
Shares surrendered by employees to pay taxes related to unrestricted stock (in shares) (32,000)        
Issuance of common stock under employee stock purchase plan   39     39
Issuance of common stock under employee stock purchase plan (in shares) 8,000        
Stock-based compensation expense   915     915
Tax benefits from stock-based awards   1,247     1,247
Dividend payment       (39,905) (39,905)
Accumulated other comprehensive loss:          
Unrealized gain (loss) on securities     162   162
Deferred tax benefit (expense) on unrealized gain (loss)     (66)   (66)
Net income       4,583 4,583
Balance at Dec. 31, 2014 $ 228 103,756 (29) (51,566) 52,389
Balance (in shares) at Dec. 31, 2014 22,809,000        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of unrestricted stock $ 1 (1)      
Issuance of unrestricted stock (in shares) 152,000        
Shares surrendered by employees to pay taxes related to unrestricted stock   (156)     (156)
Shares surrendered by employees to pay taxes related to unrestricted stock (in shares) (36,000)        
Issuance of common stock under employee stock purchase plan   40     40
Issuance of common stock under employee stock purchase plan (in shares) 11,000        
Reversal of reserve for uncertain tax positions   (1,914)     (1,914)
Stock-based compensation expense   689     689
Tax benefits from stock-based awards   554     554
Accumulated other comprehensive loss:          
Unrealized gain (loss) on securities     (53)   (53)
Deferred tax benefit (expense) on unrealized gain (loss)     18   18
Net income       4,614 4,614
Balance at Dec. 31, 2015 $ 229 102,968 (64) (46,952) $ 56,181
Balance (in shares) at Dec. 31, 2015 22,936,000       22,935,988
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of unrestricted stock $ 2 (2)      
Issuance of unrestricted stock (in shares) 152,000        
Shares surrendered by employees to pay taxes related to unrestricted stock   (136)     $ (136)
Shares surrendered by employees to pay taxes related to unrestricted stock (in shares) (36,000)        
Issuance of common stock under employee stock purchase plan   44     44
Issuance of common stock under employee stock purchase plan (in shares) 10,000        
Stock-based compensation expense   558     558
Tax benefits from stock-based awards   701     701
Repurchase of common stock $ (7) (3,648)     (3,655)
Repurchase of common stock (in shares) (691,000)        
Accumulated other comprehensive loss:          
Unrealized gain (loss) on securities     69   69
Deferred tax benefit (expense) on unrealized gain (loss)     (24)   (24)
Net income       4,103 4,103
Balance at Dec. 31, 2016 $ 224 $ 100,485 $ (19) $ (42,849) $ 57,841
Balance (in shares) at Dec. 31, 2016 22,371,000       22,370,713