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Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Common Stock
In Treasury
Paid-In Capital
Retained Earnings
Total
Beginning Balance, Shares at Dec. 31, 2016 17,274        
Beginning Balance, Treasury stock shares at Dec. 31, 2016   (1,120)      
Beginning Balance, Amount at Dec. 31, 2016 $ 6,509 $ (10,340) $ 2,198 $ 49,995 $ 48,362
Stock-based compensation     38   38
Net income       1,160 1,160
Ending Balance, Shares at Jun. 30, 2017 17,274        
Ending Balance, Treasury stock shares at Jun. 30, 2017   (1,120)      
Ending Balance, Amount at Jun. 30, 2017 $ 6,509 $ (10,340) 2,236 51,155 49,560
Beginning Balance, Shares at Dec. 31, 2017 17,274        
Beginning Balance, Treasury stock shares at Dec. 31, 2017   (1,266)      
Beginning Balance, Amount at Dec. 31, 2017 $ 6,509 $ (11,812) 2,244 49,649 46,590
Issuance of common stock in connection with stock-based compensation, Shares   22      
Issuance of common stock in connection with stock-based compensation, Amount   $ 203 (71)   132
Treasury stock purchased, Shares   (151)      
Treasury stock purchased, Amount   $ (1,168)     (1,168)
Stock-based compensation     11   11
Net income       240 240
Ending Balance, Shares at Jun. 30, 2018 17,274        
Ending Balance, Treasury stock shares at Jun. 30, 2018   (1,395)      
Ending Balance, Amount at Jun. 30, 2018 $ 6,509 $ (12,777) $ 2,184 $ 49,889 $ 45,805