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STOCK PLANS AND STOCK BASED COMPENSATION - Performance Measures and Additional Disclosures (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Jun. 30, 2015
Mar. 31, 2015
Additional disclosures        
Shares of common stock granted 358,000 1,341,000 14,084,000  
Compensation expense $ 89     $ 90
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     11,171
Compensation expense $ 26     $ 0
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%