XML 57 R46.htm IDEA: XBRL DOCUMENT v3.21.2
STOCKHOLDERS' EQUITY (Common Stock, 2018 Purchase Agreement and LP Purchase Agreement) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Jun. 26, 2020
Apr. 08, 2020
Mar. 26, 2020
Sep. 07, 2018
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Jan. 01, 2019
Dec. 20, 2018
Class of Stock [Line Items]                      
Common stock, shares authorized (in shares)         150,000,000   150,000,000   150,000,000 250,000,000 150,000,000
Proceeds from exercise of warrants             $ 400,000        
Proceeds upon issuance of common stock from exercise of stock options         $ 3,000 $ 3,000 3,000 $ 3,000      
Issuance of common stock in connection with at the market offering, net of issuance costs             $ 14,947,000        
Shares issued (in shares)               2,060,000      
Shares issued (in shares)         22,708,292   22,708,292   17,576,916    
Common stock, shares outstanding (in shares)         22,708,292   22,708,292   17,576,916    
Issuance of common stock, net of issuance costs             $ 16,207,000 $ 6,921,000      
Issuance of common stock for consulting services             $ 150,000        
Conversion of debt into stock               $ 2,176,000      
Common Stock [Member]                      
Class of Stock [Line Items]                      
Proceeds upon issuance of common stock from exercise of warrants (in shares)             74,000        
Proceeds from exercise of warrants         $ 400,000            
Proceeds upon issuance of common stock from exercise of stock options (in shares)           1,229   1,229      
Common stock issued in connection with the conversion of convertible notes         0 0 0 3,908,145      
Issuance of common stock in connection with at the market offering, net of issuance costs             $ 45,000        
Shares issued (in shares)             4,501,000        
Issuance of common stock for consulting services (in shares)         0   55,147        
Issuance of common stock for consulting services         $ 0   $ 200,000        
Number of shares converted from debt instrument (in shares)               3,908,145      
Conversion of debt into stock           $ 0   $ 2,200,000      
Common Stock [Member]                      
Class of Stock [Line Items]                      
Proceeds upon issuance of common stock from exercise of warrants (in shares)         0            
Proceeds from exercise of warrants         $ 0            
Proceeds upon issuance of common stock from exercise of stock options (in shares)         1,229   1,229        
Preferred Class B                      
Class of Stock [Line Items]                      
Conversion price (in dollars per share)         $ 0.40   $ 0.40        
Lincoln Park [Member]                      
Class of Stock [Line Items]                      
Issuance of common stock in connection with at the market offering, net of issuance costs       $ 10,000,000              
Shares issued (in shares) 4,500,000                    
Shares issued (in shares)         3,460,000   3,460,000        
Shares sold in offering (in shares)           0   1,040,654      
Issuance of common stock, net of issuance costs           $ 0   $ 1,400,000      
LP 2020 Purchase Agreement [Member]                      
Class of Stock [Line Items]                      
Issuance of common stock, net of issuance costs             $ 8,800,000        
LP 2020 Purchase Agreement [Member] | Lincoln Park [Member]                      
Class of Stock [Line Items]                      
Issuance of common stock in connection with at the market offering, net of issuance costs     $ 10,000,000                
Shares issued (in shares)   1,770,000 250,000                
Shares sold in offering (in shares)         0   500,000        
Issuance of common stock, net of issuance costs         $ 0   $ 1,300,000