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NET INCOME PER SHARE (Tables)
12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Schedule of net income per share
    Year ended December 31,
    2016   2015   2014
             
Net income   $ 4,103     $ 4,614     $ 4,583  
                         
Shares outstanding:                        
Weighted-average common shares outstanding     22,829       22,899       22,703  
Additional dilutive common stock equivalents     69       66       84  
Diluted shares outstanding     22,898       22,965       22,787  
                         
Net income per share – basic   $ 0.18     $ 0.20     $ 0.20  
Net income per share - diluted   $ 0.18     $ 0.20     $ 0.20