Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Stock Option Award Activity) (Details)

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STOCK-BASED COMPENSATION (Stock Option Award Activity) (Details) - $ / shares
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Number of Options outstanding          
Exercised (in shares)   (4,692)      
Common stock options          
Number of Options outstanding          
Outstanding at the beginning of the year (in shares)     1,255,280    
Granted (in shares) 62,000 80,000 102,000 117,500  
Exercised (in shares)     0    
Forfeited (in shares)     (1,252)    
Outstanding at the end of the reporting period (in shares) 1,356,028   1,356,028   1,255,280
Number of Options Exercisable          
Exercisable at the beginning of the year (in shares)     843,019    
Vested (in shares)     (84,887)    
Forfeited (in shares)     (1,252)    
Exercisable at the end of the reporting period (in shares) 926,654   926,654   843,019
Weighted Average Exercise Price Outstanding          
Outstanding at the beginning of period (in dollars per share)     $ 4.82    
Granted (in dollars per share)     2.61    
Exercised (in dollars per share)     0.00    
Forfeited (in dollars per share)     4.62    
Outstanding at the end of the reporting period (in dollars per share) $ 4.65   4.65   $ 4.82
Weighted Average Exercise Price Exercisable          
Exercisable at the beginning of the reporting period (in dollars per share)     5.02    
Vested exercisable (in dollars per share)     4.17    
Forfeited (in dollars per share)     4.62    
Exercisable at the end of the reporting period (in dollars per share) 4.95   4.95   5.02
Weighted Average Grant Date Fair Value Outstanding          
Outstanding at the beginning of the reporting period (in dollars per share)     3.03    
Granted (in dollars per share)     1.76    
Exercised (in dollars per share)     0.00    
Forfeited (in dollars per share)     2.79    
Outstanding at the end of the reporting period (in dollars per share) 2.93   2.93   3.03
Weighted Average Grant Date Fair Value Exercisable          
Exercisable at the beginning of the reporting period (in dollars per share)     3.13    
Vested options exercisable (in dollars per share)     2.63    
Exercised options exercisable (in dollars per share)     0.00    
Forfeited options exercisable (in dollars per share)     2.79    
Exercisable at the end of the reporting period (in dollars per share) $ 3.09   $ 3.09   $ 3.13
Weighted Average Remaining Life In Years Outstanding          
Outstanding Weighted Average Remaining Life (in years)     7 years 5 months 5 days   7 years 9 months
Granted (in years)     9 years 9 months    
Weighted Average Remaining Life Exercisable          
Exercisable, Weighted Average Remaining Life     6 years 8 months 19 days   7 years 2 months 23 days
Granted (in years)     7 years 10 months 17 days