Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION (Details)

v3.8.0.1
STOCK-BASED COMPENSATION (Details) - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding at begining 401,724  
Grants 834,634  
Exercised  
Forfeitures or expirations  
Outstanding at end 1,236,358 401,724
Vested and expected to vest at end 1,236,358  
Exercisable at end 178,810  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding at begining $ 39.81  
Grants 3.70  
Forfeitures or expirations  
Outstanding at end 15.43 $ 39.81
Vested and expected to vest at end 15.43  
Exercisable at end $ 76.27  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term [Roll Forward]    
Outstanding at end 9 years 2 months 12 days 8 years 4 months 6 days
Vested and expected to vest at end 9 years 2 months 12 days  
Exercisable at end 6 years 12 months 26 days