Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Narrative) (Details)

v3.20.4
Stockholders' Equity (Narrative) (Details)
 3 Months Ended 6 Months Ended
Jun. 26, 2020
USD ($)
shares
Dec. 31, 2020
USD ($)
shares / d
$ / shares
shares
Dec. 31, 2020
USD ($)
shares / d
$ / shares
shares
Sep. 30, 2020
USD ($)
$ / shares
shares
Oct. 31, 2016
shares
Class of Stock [Line Items]          
Preferred stock, issued   0 0 0  
Preferred stock, outstanding   0 0 0  
Common Stock, shares outstanding   71,906,903 71,906,903 69,863,681  
Aspire Capital Purchase Agreement, 2020 [Member]          
Class of Stock [Line Items]          
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    
Stock issuance price | $ / shares   $ 0.50 $ 0.50    
Maximum VWAP percentage   30.00%      
General percentage of VWAP pursuant to notice   97.00%      
Common Stock, shares outstanding   1,644,737 1,644,737    
Proceeds from sale of stock under purchase agreement | $     $ 5,000,000    
Remaining amount authorized | $   $ 18,900,000 18,900,000    
Shares issued in connection with common stock offering 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 2,326,841  
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 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