Quarterly report pursuant to Section 13 or 15(d)

Equity (Details)

v3.21.2
Equity (Details) - USD ($)
 1 Months Ended 6 Months Ended 9 Months Ended
Apr. 24, 2020
Dec. 31, 2020
Aug. 31, 2020
Jun. 30, 2020
Jun. 19, 2020
Jun. 30, 2021
Jun. 30, 2020
Sep. 30, 2020
Apr. 30, 2020
Mar. 14, 2017
Equity (Details) [Line Items]                    
Sale of common stock, shares (in Shares) 4,300,000                  
Gross Proceeds             $ 54,839,000      
Warrants to purchase shares of common stock (in Shares) 2,800,000                  
Pre-funded warrant $ 4.497                  
Exercise price of warrant (in Dollars per share) $ 0.003     $ 15.62 $ 0.003   $ 15.62   $ 26.40  
Gross proceeds $ 31,600,000                  
Net proceeds of public offering 29,100,000                  
Compensation expense           $ 3,600,000        
Weighted average term           3 years        
Compensation expense related to stock options           $ 700,000 $ 500,000      
Outstanding warrant to purchase shares of common stock, issued (in Shares)                   1,907
Deemed dividend to common stockholders               $ 1,000    
Equity Option [Member]                    
Equity (Details) [Line Items]                    
Exercise price of warrant (in Dollars per share)           $ 9.25        
Stock options granted (in Shares)           95,000        
Exercise price           $ 7.32        
Stock option term           10 years        
Vesting period of stock option           4 years        
Aggregate fair value           $ 600,000        
Stock option, description           (1) discount rate range from 0.65% to 1.07% (2) expected life of 6 years, (3) expected volatility range from 83.1% to 85.1%, and (4) no expected dividends. During the six months ended June 30, 2021, options to purchase 1 thousand shares were exercised and options to purchase 50 thousand shares were cancelled upon the termination of employment for several employees.        
Capital on Demand Sales Agreement [Member]                    
Equity (Details) [Line Items]                    
Aggregate value of common stock     $ 200,000,000              
Sale of common stock, shares (in Shares)   2,100,000       3,500,000        
Gross Proceeds   $ 22,600,000       $ 29,600,000        
Net Proceeds   $ 21,700,000       $ 28,700,000        
Pre-funded Warrants [Member]                    
Equity (Details) [Line Items]                    
Warrants to purchase shares of common stock $ 4.50                  
Exercise price of warrant (in Dollars per share)       $ 0.003   $ 0.003 $ 0.003      
Gross proceeds         $ 25,000,000.0          
Net proceeds of public offering         $ 23,000,000.0          
Warrants exercised (in Shares)       1,200,000            
Issuance of common stock (in Shares)       1,200,000 1,900,000          
Warrant to purchase of common stock (in Shares)         700,000          
Pre-funded warrants outstanding (in Shares)             2,300,000      
Common Stock [Member]                    
Equity (Details) [Line Items]                    
Share price (in Dollars per share)         $ 9.75          
Warrant [Member]                    
Equity (Details) [Line Items]                    
Share price (in Dollars per share)         $ 9.747