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SUBSEQUENT EVENTS (Details)
1 Months Ended 3 Months Ended
May 14, 2019
USD ($)
D
$ / shares
shares
Apr. 16, 2019
USD ($)
$ / shares
shares
Feb. 12, 2019
USD ($)
shares
Nov. 29, 2018
USD ($)
shares
Sep. 17, 2018
USD ($)
Apr. 30, 2019
USD ($)
D
$ / shares
Mar. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
shares
Sep. 30, 2018
USD ($)
item
$ / shares
Jan. 02, 2019
Subsequent Event [Line Items]                    
Conversion of debt into stock     $ 1,900,000         $ 200,000    
Number of shares converted from debt instrument (in shares) | shares     120,983         93,333    
Interest rate (as a percent)                   8.00%
Proceeds from issuance of debt             $ 250,000      
Senior Secured Convertible Promissory Notes                    
Subsequent Event [Line Items]                    
Conversion of debt into stock         $ 2,800,000          
Debt discount             400,000      
May 2019 Warrants                    
Subsequent Event [Line Items]                    
Conversion price per share | $ / shares $ 9.56                  
Stock rights issued (in shares) | shares | shares 154,343                  
Stock Issued On Exercise Of Warrants | shares 154,343                  
Subsequent Events | Convertible Bridge Loan                    
Subsequent Event [Line Items]                    
Right To Redemption Period 30 days                  
Subsequent Events | Convertible Bridge Loan | Debt Instrument, Redemption, Period One                    
Subsequent Event [Line Items]                    
Debt instrument, redemption price, percentage 105.00%                  
Right To Redemption Period 90 days                  
Subsequent Events | Convertible Bridge Loan | Debt Instrument, Redemption, Period Two                    
Subsequent Event [Line Items]                    
Debt instrument, redemption price, percentage 110.00%                  
Right To Redemption Period 180 days                  
Subsequent Events | Convertible Bridge Loan | Debt Instrument, Redemption, Period Three                    
Subsequent Event [Line Items]                    
Debt instrument, redemption price, percentage 115.00%                  
Right To Redemption Period 180 days                  
Subsequent Events | Amendment No. 2 Agreement                    
Subsequent Event [Line Items]                    
Shares called by warrants (in shares) | shares   146,520                
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares   $ 5.40                
Subsequent Events | Securities purchase agreement                    
Subsequent Event [Line Items]                    
Warrants term 5 years                  
Subsequent Events | Securities purchase agreement | Senior Secured Convertible Promissory Notes                    
Subsequent Event [Line Items]                    
Debt issued $ 1,098,901         $ 989,011        
Proceeds from issuance of debt 1,000,000                  
April 2019 Additional Notes and Warrants [Member] | Subsequent Events | Amendment No. 2 Agreement                    
Subsequent Event [Line Items]                    
Conversion threshold percentage of stock price trigger           80.00%        
Convertible debt, threshold consecutive trading days | D           10        
Floor price | $ / shares           $ 2.25        
Proceeds from issuance of debt   $ 989,011                
April 2019 Additional Notes and Warrants [Member] | Subsequent Events | Amendment No. 2 Agreement | Minimum                    
Subsequent Event [Line Items]                    
Conversion price (in dollars per share) | $ / shares           0.75        
April 2019 Additional Notes and Warrants [Member] | Subsequent Events | Amendment No. 2 Agreement | Maximum                    
Subsequent Event [Line Items]                    
Conversion price (in dollars per share) | $ / shares           $ 3.75        
Additional Notes | Subsequent Events | Amendment No. 2 Agreement                    
Subsequent Event [Line Items]                    
Proceeds from issuance of debt   $ 900,000                
Convertible Debt [Member]                    
Subsequent Event [Line Items]                    
Conversion of debt into stock             3,700,000      
Debt, carrying amount             $ 3,129,000 $ 4,377,000    
Number of shares converted from debt instrument (in shares) | shares             1,061,069      
Convertible Debt [Member] | Convertible Bridge Loan                    
Subsequent Event [Line Items]                    
Conversion of debt into stock       $ 2,300,000            
Debt, carrying amount       $ 4,500,000            
Number of shares converted from debt instrument (in shares) | shares       1,112,762            
Interest rate (as a percent)                 8.00%  
Repayment Period                 180 days  
Conversion price per share | $ / shares                 $ 7.50  
Conversion threshold percentage of stock price trigger                 80.00%  
Convertible debt, threshold consecutive trading days | item                 10  
Proceeds from issuance of debt             $ 1,300,000      
Early repayment trigger, amount of gross proceeds             7,000,000      
Percentage per month charged as damages if registration statement not filed by deadline                 1.00%  
Debt discount             $ 1,053,000 $ 1,111,000 $ 164,000  
Convertible Debt [Member] | Convertible Bridge Loan | Debt Instrument, Redemption, Period One                    
Subsequent Event [Line Items]                    
Debt instrument, redemption price, percentage             105.00%      
Convertible Debt [Member] | Convertible Bridge Loan | Debt Instrument, Redemption, Period Two                    
Subsequent Event [Line Items]                    
Debt instrument, redemption price, percentage             110.00%      
Convertible Debt [Member] | Convertible Bridge Loan | Debt Instrument, Redemption, Period Three                    
Subsequent Event [Line Items]                    
Debt instrument, redemption price, percentage             115.00%      
Convertible Debt [Member] | Convertible Bridge Loan | Minimum                    
Subsequent Event [Line Items]                    
Conversion price per share | $ / shares                 $ 4.50  
Convertible Debt [Member] | Subsequent Events | Convertible Bridge Loan                    
Subsequent Event [Line Items]                    
Debt, carrying amount $ 1,098,901                  
Interest rate (as a percent) 8.00%                  
Original issue discount (as a percent) 9                  
Repayment Period 180 days                  
Conversion price per share | $ / shares $ 7.12                  
Conversion threshold percentage of stock price trigger 80.00%                  
Convertible debt, threshold consecutive trading days | D 10                  
Proceeds from issuance of debt $ 1,000,000                  
Early repayment trigger, amount of gross proceeds $ 7,000,000                  
Percentage per month charged as damages if registration statement not filed by deadline 1.00%                  
Debt discount $ 98,901                  
Convertible Debt [Member] | Subsequent Events | Convertible Bridge Loan | Minimum                    
Subsequent Event [Line Items]                    
Conversion price per share | $ / shares $ 2.25