Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Estimated Fair Value of Stock Options) (Details)

v3.10.0.1
STOCK-BASED COMPENSATION (Estimated Fair Value of Stock Options) (Details) - Common stock options - $ / shares
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Dividend Yield 0.00% 0.00%
Expected Volatility 60.00% 70.00%
Expected Life 7 years 7 years
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 2.50% 1.98%
Exercise price range, lower limit (in dollars per share)   $ 4.36
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate 2.98% 2.14%
Exercise price range, upper limit (in dollars per share)   $ 4.68
Employees    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Exercise price range, lower limit (in dollars per share) $ 4.12 4.36
Exercise price range, upper limit (in dollars per share) $ 5.96 $ 4.68
Forfeitures rate 6.00% 6.00%