Annual report pursuant to Section 13 and 15(d)

STOCK INCENTIVE PLAN (Details 4)

v3.7.0.1
STOCK INCENTIVE PLAN (Details 4) - $ / shares
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options 1,720,000 1,581,123 1,816,204
Weighted Average Contractual Life Remaining (Years) 4 years 6 months    
Weighted Average Exercise Price $ 5.12    
Exercisable Options 841,625    
Weighted Average Grant Date Fair Value $ 5.56    
Range of Exercise Prices From $2.38 to $2.56 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Range of Exercise Prices, Lower Limit 2.38    
Range of Exercise Prices, Upper Limit $ 2.56    
Options 147,375    
Weighted Average Contractual Life Remaining (Years) 2 years 4 months 24 days    
Weighted Average Exercise Price $ 2.38    
Exercisable Options 147,375    
Weighted Average Grant Date Fair Value $ 2.38    
Range of Exercise Prices From $2.57 to $4.42 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Range of Exercise Prices, Lower Limit 2.57    
Range of Exercise Prices, Upper Limit $ 4.42    
Options 290,500    
Weighted Average Contractual Life Remaining (Years) 4 years 7 months 6 days    
Weighted Average Exercise Price $ 2.76    
Exercisable Options 86,500    
Weighted Average Grant Date Fair Value $ 2.80    
Range of Exercise Prices From $4.43 to $4.85 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Range of Exercise Prices, Lower Limit 4.43    
Range of Exercise Prices, Upper Limit $ 4.85    
Options 541,000    
Weighted Average Contractual Life Remaining (Years) 6 years 8 months 12 days    
Weighted Average Exercise Price $ 4.85    
Exercisable Options 0    
Weighted Average Grant Date Fair Value $ 0    
Range of Exercise Prices From $4.86 to $6.65 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Range of Exercise Prices, Lower Limit 4.86    
Range of Exercise Prices, Upper Limit $ 6.65    
Options 91,250    
Weighted Average Contractual Life Remaining (Years) 1 year 8 months 12 days    
Weighted Average Exercise Price $ 5.30    
Exercisable Options 86,250    
Weighted Average Grant Date Fair Value $ 5.33    
Range of Exercise Prices From $6.66 to $7.54 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Range of Exercise Prices, Lower Limit 6.66    
Range of Exercise Prices, Upper Limit $ 7.54    
Options 619,875    
Weighted Average Contractual Life Remaining (Years) 3 years 7 months 6 days    
Weighted Average Exercise Price $ 6.92    
Exercisable Options 506,750    
Weighted Average Grant Date Fair Value $ 6.92    
Range of Exercise Prices From $7.55 to $8.76 [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Range of Exercise Prices, Lower Limit 7.55    
Range of Exercise Prices, Upper Limit $ 8.76    
Options 30,000    
Weighted Average Contractual Life Remaining (Years) 4 years 9 months 18 days    
Weighted Average Exercise Price $ 8.37    
Exercisable Options 14,750    
Weighted Average Grant Date Fair Value $ 8.37