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Consolidated Statement of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Total
Balance at Dec. 31, 2017 $ 299 $ 97,873 $ 150,236 $ 915 $ 249,323
Balance (in Shares) at Dec. 31, 2017 29,955        
Stock-based compensation   2,366     2,366
Stock issued on vesting of RSUs $ 2       2
Stock issued on vesting of RSUs (in Shares) 223        
Taxes paid on vesting of RSUs   (11)     (11)
Taxes paid on vesting of RSUs (in Shares) (1)        
Dividends     (2,471)   (2,471)
Net income     2,109   2,109
Balance at Jun. 30, 2018 $ 301 100,228 150,789   251,318
Balance (in Shares) at Jun. 30, 2018 30,177        
Balance at Mar. 31, 2018 $ 299 99,841 152,047   252,187
Balance (in Shares) at Mar. 31, 2018 29,956        
Stock-based compensation   394     394
Stock issued on vesting of RSUs $ 2       2
Stock issued on vesting of RSUs (in Shares) 221        
Taxes paid on vesting of RSUs   (7)     (7)
Dividends     (1,235)   (1,235)
Net income     (23)   (23)
Balance at Jun. 30, 2018 $ 301 100,228 150,789   251,318
Balance (in Shares) at Jun. 30, 2018 30,177        
Impact from adoption of ASU 2018-02 and ASU 2016-01 (Note 1)     915 $ (915)  
Balance at Dec. 31, 2018 $ 302 100,742 153,830   254,874
Balance (in Shares) at Dec. 31, 2018 30,245        
Stock-based compensation   1,012     1,012
Stock issued on vesting of RSUs (in Shares) 4        
Taxes paid on vesting of RSUs   (7)     (7)
Taxes paid on vesting of RSUs (in Shares) (2)        
Dividends     (2,483)   (2,483)
Net income     3,656   3,656
Balance at Jun. 30, 2019 $ 302 101,747 155,003   257,052
Balance (in Shares) at Jun. 30, 2019 30,247        
Balance at Mar. 31, 2019 $ 302 101,236 159,589   261,127
Balance (in Shares) at Mar. 31, 2019 30,245        
Stock-based compensation   518     518
Stock issued on vesting of RSUs (in Shares) 4        
Taxes paid on vesting of RSUs   (7)     (7)
Taxes paid on vesting of RSUs (in Shares) (2)        
Dividends     (1,242)   (1,242)
Net income     (3,344)   (3,344)
Balance at Jun. 30, 2019 $ 302 $ 101,747 $ 155,003   $ 257,052
Balance (in Shares) at Jun. 30, 2019 30,247