Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Narrative) (Details)

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Stockholders' Equity (Narrative) (Details)
 3 Months Ended 18 Months Ended
Feb. 22, 2021
USD ($)
$ / shares
shares
Jun. 26, 2020
USD ($)
shares
Dec. 31, 2021
USD ($)
shares / d
$ / shares
shares
Dec. 31, 2021
USD ($)
shares / d
$ / shares
shares
Sep. 30, 2021
USD ($)
$ / shares
shares
Jun. 30, 2021
shares
Sep. 30, 2020
shares
Oct. 31, 2016
shares
Class of Stock [Line Items]                
Preferred stock, issued     0 0 0      
Preferred stock, outstanding     0 0 0      
Shares issued 7,419,354              
Stock issuance price | $ / shares $ 15.50              
Proceeds from sale of shares in public offering, net of fees | $ $ 108,000,000.0              
Common Stock, shares outstanding     80,049,082 80,049,082 79,969,748      
Common Stock, Shares Authorized     154,000,000 154,000,000 154,000,000      
Common Stock, Par or Stated Value Per Share | $ / shares     $ 0.01 $ 0.01 $ 0.01      
Aspire Capital Purchase Agreement, 2020 [Member]                
Class of Stock [Line Items]                
Stock issuance price | $ / shares     $ 0.50 $ 0.50        
Proceeds from sale of shares in public offering, net of fees | $       $ 5,000,000.0        
Stock purchase agreement, term     36 months          
Stock purchase agreement, aggregate amount of stock purchase authorized | $   $ 23,900,000            
Maximum purchase of shares per business day | shares / d     200,000 200,000        
Maximum VWAP percentage     30.00%          
General percentage of VWAP pursuant to notice     97.00%          
Common Stock, shares outstanding     1,644,737 1,644,737        
Remaining amount authorized | $     $ 18,900,000 $ 18,900,000        
Shares issued in connection with public offering of common stock, net of fees and costs   212,130            
Value of shares issued for services | $   $ 681,000            
Related expenses | $   50,000            
Deferred costs | $   $ 731,000            
Unamortized deferred assets | $     $ 578,000 $ 578,000 $ 578,000      
Financial Advisor Warrant [Member]                
Class of Stock [Line Items]                
Warrant to purchase common stock shares     2,326,841 2,326,841       2,585,379
Warrant term     5 years          
Warrant exercise price | $ / shares     $ 1.93 $ 1.93        
Warrants outstanding     0 0        
Issuance of shares pursuant to common stock purchase warrants     1,574,611          
Preferred Class A [Member]                
Class of Stock [Line Items]                
Preferred stock, shares authorized     5,000,000 5,000,000 5,000,000      
Preferred stock, par or stated value per share (in Dollars per share) | $ / shares     $ 0.01 $ 0.01 $ 0.01      
Preferred stock, issued     0 0 0      
Preferred stock, outstanding           0 0  
Preferred Class A Series 1 [Member]                
Class of Stock [Line Items]                
Preferred stock, shares authorized     1,040,000 1,040,000 1,040,000      
Preferred Class A Series 2 [Member]                
Class of Stock [Line Items]                
Preferred stock, shares authorized     1,500,000 1,500,000 1,500,000      
Preferred Class A Series 3 [Member]                
Class of Stock [Line Items]                
Preferred stock, shares authorized     700,000 700,000 700,000      
Preferred Class A Series 4 [Member]                
Class of Stock [Line Items]                
Preferred stock, shares authorized     548,000 548,000        
Preferred Class B [Member]                
Class of Stock [Line Items]                
Preferred stock, shares authorized     15,000 15,000 15,000      
Preferred stock, par or stated value per share (in Dollars per share) | $ / shares     $ 0.50 $ 0.50 $ 0.50      
Preferred stock, issued     0 0 0      
Preferred stock, outstanding     0 0 0