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STOCK PLANS AND STOCK BASED COMPENSATION (Details 3) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Mar. 31, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Additional disclosures            
Compensation expense $ 70,000   $ 91,000 $ 160,000 $ 180,000  
Common Stock            
Stock repurchase program            
Percentage of common stock shares authorized to repurchase           5.00%
Number of common stock shares authorized to repurchase           1,085,000
Value of common stock shares repurchased $ 93,685 $ 27,400        
Number of common stock shares repurchased 1,883,000 520,000        
Performance share 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%    
Vesting period       3 years    
Shares            
Granted (in shares) 16,205          
Weighted Average Grant Date Fair Value            
Granted (in dollars per share) $ 19.57          
Additional disclosures            
Compensation expense $ 26,000     $ 26,000    
Compensation cost to be expensed in the future $ 291,000     $ 291,000    
Threshold | Performance share units | Executive officers            
Stock-based compensation            
Performance paid upon achievement of target levels (as a percent)       0.00%    
Target | Performance share units | Executive officers            
Stock-based compensation            
Performance paid upon achievement of target levels (as a percent)       100.00%    
Superior | Performance share units | Executive officers            
Stock-based compensation            
Performance paid upon achievement of target levels (as a percent)       150.00%