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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Common Stock
In Treasury
Paid-In Capital
Retained Earnings
Total
Beginning Balance, Shares at Dec. 31, 2016 17,274,000        
Beginning Balance, Treasury stock shares at Dec. 31, 2016   (1,120,000)      
Beginning Balance, Amount at Dec. 31, 2016 $ 6,509 $ (10,340) $ 2,198 $ 49,995 $ 48,362
Stock-based compensation     20   20
Net income       124 124
Ending Balance, Shares at Mar. 31, 2017 17,274,000        
Ending Balance, Treasury stock shares at Mar. 31, 2017   (1,120,000)      
Ending Balance, Amount at Mar. 31, 2017 $ 6,509 $ (10,340) 2,218 50,119 48,506
Beginning Balance, Shares at Dec. 31, 2017 17,274,000        
Beginning Balance, Treasury stock shares at Dec. 31, 2017   (1,266,000)      
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   16,000      
Issuance of common stock in connection with stock-based compensation, Amount   $ 151 (54)   97
Treasury stock purchased, Shares   (131,000)      
Treasury stock purchased, Amount   $ (1,052)     (1,052)
Stock-based compensation     5   5
Net income       70 70
Ending Balance, Shares at Mar. 31, 2018 17,274,000        
Ending Balance, Treasury stock shares at Mar. 31, 2018   (1,381,000)      
Ending Balance, Amount at Mar. 31, 2018 $ 6,509 $ (12,713) $ 2,195 $ 49,719 $ 45,710