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STOCK PLANS AND STOCK BASED COMPENSATION - Performance Measures and Additional Disclosures (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Additional disclosures            
Shares of common stock granted 17,976   358,000      
Compensation expense $ 103     $ 70 $ 282 $ 230
Performance units | Executive officers            
Performance Measures            
Return on assets criteria (as a percent)         50.00%  
Total shareholder return criteria (as a percent)         25.00%  
Earnings per share criteria (as a percent)         25.00%  
Additional disclosures            
Vesting period         3 years  
Shares of common stock granted   16,152   16,205    
Compensation expense $ 55       $ 137  
Threshold | Performance units | Executive officers            
Performance Measures            
Performance levels (as a percent)         0.00%  
Target | Performance units | Executive officers            
Performance Measures            
Performance levels (as a percent)         100.00%  
Superior | Performance units | Executive officers            
Performance Measures            
Performance levels (as a percent)         150.00%