Quarterly report pursuant to Section 13 or 15(d)

CAPITAL STOCK - Narrative (Details)

v3.20.2
CAPITAL STOCK - Narrative (Details) - USD ($)
1 Months Ended 9 Months Ended
Feb. 17, 2020
Nov. 12, 2020
Oct. 31, 2020
Jun. 30, 2020
Sep. 30, 2020
Apr. 14, 2020
Dec. 31, 2019
Class of Stock [Line Items]              
Common stock, shares authorized (in shares)         100,000,000   50,000,000
Common stock, par value (in usd per share)         $ 0.01   $ 0.01
Common stock, shares issued (in shares)         31,241,636   8,480,968
Aggregate purchase price for stock and warrants       $ 200,000      
Preferred shares authorized (in shares)         5,000,000    
Par value (in dollars per share)         $ 0.01    
Preferred stock shares outstanding (in shares)         0    
Subsequent Event              
Class of Stock [Line Items]              
Sale of stock, expiration term     5 years        
Pre-Funded Warrant | Subsequent Event              
Class of Stock [Line Items]              
Exercise price (in usd per share)     $ 0.001        
Common Stock Public Offering              
Class of Stock [Line Items]              
Common stock, shares issued (in shares)       14,790,133      
Exercise price (in usd per share)       $ 1.25      
Sale of stock, expiration term       5 years      
Net proceeds from common stock public offering       $ 18,700,000      
Underwriting commissions, discounts, and other offering expenses       $ 1,400,000      
Common Stock Public Offering | Pre-Funded Warrant              
Class of Stock [Line Items]              
Stock issuable upon warrants (in shares)       2,709,867      
Public offering price (in usd per share)       $ 1.15      
Common Stock Public Offering | Accompanying Common Warrant              
Class of Stock [Line Items]              
Stock issuable upon warrants (in shares)       17,500,000      
Public offering price (in usd per share)       $ 1.149      
At Market Issuance Sales Agreement              
Class of Stock [Line Items]              
Aggregate offering price           $ 8,000,000.0  
Closing sale price (in dollars per share)         $ 0.84    
Number of shares issued in transaction (in shares)         3,400,418    
Consideration received on transaction         $ 2,600,000    
At Market Issuance Sales Agreement | Subsequent Event              
Class of Stock [Line Items]              
Closing sale price (in dollars per share)   $ 0.88          
Number of shares issued in transaction (in shares)   959,749          
Consideration received on transaction   $ 800,000          
Private Placement Offerings              
Class of Stock [Line Items]              
Common stock, shares issued (in shares) 950,000            
Aggregate gross purchase price $ 2,000,000.0            
Private Placement Offerings | Series A              
Class of Stock [Line Items]              
Stock issuable upon warrants (in shares) 606,420            
Exercise price (in usd per share) $ 0.01            
Private Placement Offerings | Series B              
Class of Stock [Line Items]              
Stock issuable upon warrants (in shares) 1,556,420            
Exercise price (in usd per share) $ 1.16            
Lincoln Park              
Class of Stock [Line Items]              
Purchase obligation $ 28,000,000.0            
Purchase obligation, term 36 months            
Maximum commitment purchase amount $ 1,000,000            
Percentage of ownership after transaction 9.99%            
Lincoln Park | Purchase Agreement              
Class of Stock [Line Items]              
Closing sale price (in dollars per share) $ 3.00            
Maximum shares allowed to be purchased 100,000            
Maximum share increase amount 125,000            
Lincoln Park | Regular Purchase              
Class of Stock [Line Items]              
Closing sale price (in dollars per share) $ 5.00            
Maximum share increase amount 150,000