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SUBSEQUENT EVENTS (Details)
$ / shares in Units, $ in Millions
Feb. 01, 2018
USD ($)
director
$ / shares
shares
Dec. 21, 2017
USD ($)
Dec. 31, 2017
shares
SUBSEQUENT EVENTS      
Warrants to purchase common stock (in shares) | shares     7,588,800
Secured Debt      
SUBSEQUENT EVENTS      
Proceeds from issuance of debt | $   $ 5.0  
Subsequent Event | Secured Debt      
SUBSEQUENT EVENTS      
Face amount | $ $ 25.0    
Percentage of conversion of outstanding principal of Lender loaned into common stock 20.00%    
Conversion price (in dollars per share) | $ / shares $ 1.15    
Conversion price of remaining outstanding loan | $ / shares $ 1.55    
Warrants to purchase common stock (in shares) | shares 1,500,000    
Warrants exercise price (in dollars per share) | $ / shares $ 0.01    
Option to purchase percentage of securities offered by the Company in any offering after December 31, 2018 25.00%    
Discount on issuance of common stock 10.00%    
Number of volume-weighted average trading price 30 days    
Number of board of directors, lenders may appoint | director 3    
Minimum number of independent director | director 1    
Subsequent Event | Secured Debt | Providence Energy Operators, LLC      
SUBSEQUENT EVENTS      
Number of board of directors designated by related party | director 2    
Subsequent Event | Secured Debt | 5NR      
SUBSEQUENT EVENTS      
Number of board of directors designated by related party | director 1    
Subsequent Event | Secured Debt | Three-month LIBOR      
SUBSEQUENT EVENTS      
Spread on variable rate 1.00%    
Subsequent Event | Secured Debt | Minimum      
SUBSEQUENT EVENTS      
Interest rate (as a percent) 14.00%    
Exercise price minimum | $ / shares $ 1.85    
Subsequent Event | Secured Debt | Maximum      
SUBSEQUENT EVENTS      
Interest rate (as a percent) 17.00%    
Option to purchase percentage of securities offered by the Company in any offering until December 31, 2018 50.00%    
Option to purchase common stock maximum | $ $ 25.0