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Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
AOCI Attributable to Parent [Member]
Total
Balance (in shares) at Dec. 31, 2015 3,956,207          
Balance at Dec. 31, 2015 $ 40 $ 106,568 $ (44,832) $ (160) $ (152) $ 61,464
Comprehensive income:            
Net income     885     885
Other comprehensive income         114 114
Total comprehensive income     885   114 999
Purchase of treasury stock (in shares) (518)          
Purchase of treasury stock       (7)   (7)
Share-based compensation expense   126       126
Vesting of restricted stock (in shares) 4,214          
Balance (in shares) at Dec. 31, 2015 3,956,207          
Balance at Dec. 31, 2015 $ 40 106,568 (44,832) (160) (152) 61,464
Balance (in shares) at Sep. 30, 2016 3,959,903          
Balance at Sep. 30, 2016 $ 40 106,694 (43,947) (167) (38) 62,582
Balance (in shares) at Dec. 31, 2016 3,891,897          
Balance at Dec. 31, 2016 $ 40 106,729 (42,902) (1,177) (120) 62,570
Comprehensive income:            
Net income     3,547     3,547
Other comprehensive income         129 129
Total comprehensive income     3,547   129 3,676
Purchase of treasury stock (in shares) (100)          
Purchase of treasury stock       (2)   (2)
Common stock dividends     (39)     (39)
Share-based compensation expense   105       105
Vesting of restricted stock (in shares) 3,923          
Balance (in shares) at Dec. 31, 2016 3,891,897          
Balance at Dec. 31, 2016 $ 40 106,729 (42,902) (1,177) (120) 62,570
Balance (in shares) at Sep. 30, 2017 3,895,720          
Balance at Sep. 30, 2017 $ 40 $ 106,834 $ (39,394) $ (1,179) $ 9 $ 66,310