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STOCK TRANSACTIONS (Details)
Oct. 01, 2020
shares
Sep. 22, 2020
shares
Sep. 14, 2020
USD ($)
shares
Aug. 11, 2020
USD ($)
item
$ / shares
shares
Jun. 17, 2020
USD ($)
item
$ / shares
shares
Mar. 18, 2020
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ / shares       $ 3.59    
Net proceeds from private placement | $           $ 41,300,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate       0.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate       80.51%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate       0.365%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term       6 years    
ATM Equity Offering Sales Agreement [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares issued (in shares) 30,000,000          
Private Placement [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares issued (in shares)     200,000     17,604,423
Proceeds from issuance of warrants | $     $ 472,000      
Certain employees            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period         10 years  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         760,311  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ / shares         $ 3.66  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         4 years  
Number of equal quarterly increments | item         16  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares         $ 3.66  
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value | $         $ 1,900,000  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate         0.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate         80.49%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate         0.45%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term         6 years  
President and Chief Executive Officer [Member] | Restricted Stock [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross       447,927    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       4 years    
Number of equal quarterly increments | item       16    
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value | $       $ 1,600,000    
Sr. Vice President And Chief Development Officer [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period         10 years  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross         196,995  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ / shares         $ 3.59  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period         4 years  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares         $ 3.59  
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value | $         $ 500,000  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate         0.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate         80.43%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate         0.59%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term         6 years  
Sr. Vice President And Chief Development Officer [Member] | Restricted Stock [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross       246,146    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares   27,855        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares   218,291        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       4 years    
Number of equal quarterly increments | item       16    
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value | $       $ 900,000    
Vice President [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period       10 years    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross       122,656    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price | $ / shares       $ 3.59    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       4 years    
Number of equal quarterly increments | item       16    
Share Based Compensation Arrangement By Share Based Payment Award Grant Date Fair Value | $       $ 300,000