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Common and Preferred Stock (Details)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jan. 27, 2021
$ / shares
Nov. 16, 2020
$ / shares
shares
Oct. 15, 2018
USD ($)
$ / shares
shares
Oct. 15, 2018
USD ($)
$ / shares
shares
Oct. 10, 2018
shares
Sep. 11, 2017
USD ($)
D
$ / shares
shares
Oct. 31, 2018
$ / shares
Sep. 30, 2021
USD ($)
$ / shares
shares
Sep. 30, 2020
USD ($)
$ / shares
shares
Sep. 30, 2021
USD ($)
$ / shares
shares
Sep. 30, 2020
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Feb. 28, 2021
shares
Jan. 31, 2021
shares
Jan. 26, 2021
Nov. 15, 2020
$ / shares
Nov. 06, 2020
$ / shares
Nov. 05, 2020
$ / shares
Jun. 30, 2020
$ / shares
Mar. 31, 2020
$ / shares
Dec. 31, 2017
USD ($)
Aug. 05, 2016
Proceeds from Issuance or Sale of Equity | $     $ 18,600,000 $ 18,600,000                                    
Stock Issued During Period, Shares, New Issues | shares                   78,700,000                        
Preferred Stock, Par or Stated Value Per Share   $ 0.001           $ 1,000   $ 1,000   $ 1,000                    
Exercise price per warrant   $ 0.69 $ 0.69 $ 0.69     $ 0.69                 $ 1.38 $ 0.69 $ 1.38        
Effect of Warrant exercise price adjustment | $                       $ 900,000                    
Percentage of issue of the public offering             120.00%                              
Common stock issued upon conversion | shares                         8,996,768 8,996,768                
Preferred Stock, Shares Outstanding | shares               0   0   3,973                    
Proceeds from Issuance of Common Stock | $                   $ 65,960,000 $ 0                      
Over-Allotment Option [Member]                                            
Stock Issued During Period, Shares, New Issues | shares   2,428,825     2,428,825                                  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares   2,428,825     2,428,825                                  
Issue of warrants to purchase common stock | shares   1,807,826     1,807,826                                  
Fbr Capital Markets Co [Member]                                            
Brokerage Commission percentage                                           3.00%
Series A Preferred Stock [Member]                                            
Preferred Stock Conversion Price Per Share $ 18.90         $ 0.54                                
Preferred Stock Redemption Discount | $                                         $ 6,900,000  
Preferred Stock, Dividend Rate, Percentage           2.00%                                
Preferred Stock, Convertible, Conversion Price, Increase 18.90                                          
Preferred Stock, Convertible, Conversion Price, Decrease $ 1.50                                          
Convertible Preferred Stock, Terms of Conversion           (i) a 19.99% blocker provision to comply with NYSE American Listing Rules, (ii) if so elected by the Investor, a 4.99% blocker provision that would prohibit beneficial ownership of more than 4.99% of the outstanding shares of the Company’s common stock or voting power at any time, and (iii) applicable regulatory restrictions.                                
Debt Instrument, Convertible, Threshold Trading Days | D           20                                
Debt Instrument, Convertible, Threshold Consecutive Trading Days | D           30                                
Dividends Payable, Amount Per Share           $ 70.00     $ 0.01   $ 0.01               $ 0.01 $ 0.01    
Adjustments to Additional Paid in Capital, Stock Split | $           $ 7,875.00                                
Preferred stock accrued dividends | $               $ 0 $ 64,000 24,000 $ 189,000                      
Maximum percentage 9.99%                           4.99%              
Preferred Stock, Shares Outstanding | shares                         120,000 120,000                
Estimated fair value of inducement consideration | $                   7,400,000                        
Accretion of Preferred Stock Deemed Dividend | $                   $ 7,400,000                        
percentage of stated dividend rate                   2.00%                        
Series A Preferred Stock [Member] | Private Placement [Member]                                            
Stock Issued During Period, Shares, New Issues | shares           120,000                                
Preferred Stock, Par or Stated Value Per Share           $ 0.001                                
Proceeds from Issuance of Convertible Preferred Stock | $           $ 12,000,000                                
Sale of Stock, Consideration Received Per Transaction | $           $ 100                                
Series B Preferred Stock [Member]                                            
Stock Issued During Period, Value, Issued for Services | $     $ 1,000 $ 1,000                                    
Preferred Stock, Par or Stated Value Per Share     $ 1,000 $ 1,000                                    
Preferred Stock Conversion Price Per Share     $ 1.15 $ 1.15                                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares     13,672,173 13,672,173                                    
Conversion of Stock, Shares Converted | shares     13,672,173 13,672,173         1,379 3,973 3,492                      
Dividends Payable, Amount Per Share                 $ 0.03   $ 0.03               $ 0.03 $ 0.03    
Preferred stock accrued dividends | $               $ 0 $ 519,000 $ 1,496,000 $ 1,315,000                      
Accretion of Preferred Stock Deemed Dividend | $                 $ 500,000 $ 1,500,000 $ 1,300,000                      
Common Class A [Member]                                            
Stock Issued During Period, Shares, New Issues | shares     2,520,000 2,520,000                                    
Shares Issued, Price Per Share     $ 1.15 $ 1.15                                    
Exercise price per warrant     $ 1.38 $ 1.38                                    
Common Class B [Member]                                            
Stock Issued During Period, Shares, New Issues | shares     15,723 15,723                                    
Preferred Stock, Par or Stated Value Per Share     $ 1,000 $ 1,000                                    
Preferred Stock Conversion Price Per Share     $ 1.15 $ 1.15