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EARNINGS PER SHARE (EPS) (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Numerator for EPS:      
Net income (loss) $ 806 $ (4,408) $ 2,396
Denominator for EPS:      
Weighted average shares outstanding - basic 8,874,696 8,864,885 8,848,028
Dilutive shares 61,044
Weighted average shares outstanding - diluted 8,874,696 8,864,885 8,909,072
EPS      
Basic and diluted $ 0.1 $ (0.5) $ 0.27
Anti-dilutive options excluded from calculation of diluted income (loss) per share 482,282 306,151 105,000