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EQUITY AND STOCK COMPENSATION PLANS - Summarizes of stock options outstanding (Details 2) - Stock Option - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding, Number 86,202 86,202 106,202 1,004,989
Options outstanding, Weighted average exercise price $ 4.37 $ 4.37 $ 4.71 $ 5.68
Options outstanding, Weighted average remaining contractual term (in years) 1 year 29 days      
Options exercisable, Number 86,202 86,202 104,117  
Options exercisable, Weighted average exercise price $ 4.37 $ 4.37 $ 4.69  
Exercise price range $2 to $3        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price range (lower) 2      
Exercise price range (upper) $ 3      
Options outstanding, Number 18,000      
Options outstanding, Weighted average exercise price $ 2.52      
Options outstanding, Weighted average remaining contractual term (in years) 2 years 4 months 17 days      
Options exercisable, Number 18,000      
Options exercisable, Weighted average exercise price $ 2.52      
Exercise price range $3 to $4        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price range (lower) 3      
Exercise price range (upper) $ 4      
Options outstanding, Number 14,168      
Options outstanding, Weighted average exercise price $ 3.57      
Options outstanding, Weighted average remaining contractual term (in years) 9 months 26 days      
Options exercisable, Number 14,168      
Options exercisable, Weighted average exercise price $ 3.57      
Exercise price range $4 to $5        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price range (lower) 4      
Exercise price range (upper) $ 5      
Options outstanding, Number 33,200      
Options outstanding, Weighted average exercise price $ 4.64      
Options outstanding, Weighted average remaining contractual term (in years) 11 months 5 days      
Options exercisable, Number 33,200      
Options exercisable, Weighted average exercise price $ 4.64      
Exercise price range $6 to $7        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price range (lower) 6      
Exercise price range (upper) $ 7      
Options outstanding, Number 20,834      
Options outstanding, Weighted average exercise price $ 6.1      
Options outstanding, Weighted average remaining contractual term (in years) 4 months 10 days      
Options exercisable, Number 20,834      
Options exercisable, Weighted average exercise price $ 6.1