Annual report pursuant to Section 13 and 15(d)

Senior Convertible Notes Payable - Additional information (Details)

v3.20.2
Senior Convertible Notes Payable - Additional information (Details) - USD ($)
1 Months Ended 12 Months Ended
May 31, 2020
May 18, 2020
Mar. 24, 2020
Mar. 23, 2020
Mar. 22, 2020
Dec. 11, 2019
Dec. 06, 2019
Jan. 31, 2020
Aug. 31, 2020
Aug. 31, 2019
Amortized Interest expense                 $ 2,210,000 $ 1,433,000
Gross principal                   6,808,000
Conversion price         $ 9.20     $ 12.20    
Value for debt conversion                 200,000  
Additional note discount               $ 567,000    
Expense related to extinguishment of convertible notes     $ 1,592,000           (1,592,000)  
Amount of legal judgement on debt instrument               500,000    
Amount of legal judgement on default interest               52,000    
Repayment of legal judgement on debt instrument               310,000    
Additional Loss On Conversion Of Debt $ 57,000                  
Recovery from debt litigation settlement                 760,000  
Accrued interest payable                 1,800,000  
Debt instrument, conversion original amount         $ 1,047,000          
Debt instrument converted amount shares issued         135,508          
Accrued default interest         $ 25,000          
Loss on pro rata portion of the unamortized note discount and deferred financing fees         $ 413,000          
Discount on the exchange dates     2,825,000           (2,825,000)  
Amortization debt discount, debt issuance cost $ 2,419,000               6,749,000 $ 5,607,000
June 2018 Notes Due September 6, 2019 [Member]                    
Gross principal                 1,466,000  
December 2018 Notes Due December 31, 2019 [Member]                    
Gross principal                 867,000  
March 2019 Notes Due September 12, 2020 [Member]                    
Gross principal                 $ 4,475,000  
March 2019 [Member]                    
Debt amount converted               $ 130,000    
December 2019 [Member]                    
Conversion price             $ 12.20      
Percentage of principal increased             10.00%      
Coupon rate             0.00%      
Interest rate             18.00%      
Debt Instrument, Convertible, Floor Price             $ 40      
Amortization of principal in cash premium             12.50%      
Description for event of default             Alternate conversion percentage is 75% if the alternate conversion is an alternate conversion event of default as a result of bankruptcy or default related to missed amortization payment, subject to a floor conversion price of $1.84 per share, 80% for all alternate event of default conversion, or 85% if such alternate conversion is an alternate optional conversion;Redemption at the option of the Company at 15% premium at any time.      
Exchange Agreement [Member]                    
Common stock issued for note exchange, shares               24,049    
Exchange Agreement [Member] | March 2019 [Member]                    
Principal outstanding             $ 2,445,000      
Conversion price               $ 12.20    
Principal outstanding, Revised             2,690,000      
Principal Outstanding Combined Revised Balance             2,934,000      
Common stock issued for note exchange, shares               12,915    
Debt amount converted               $ 28,000    
Principal outstanding, Revised             $ 2,690,000      
Exchange Agreement [Member] | March 2019 Convertible Notes [Member]                    
Conversion price             $ 40.00      
Percentage of principal balance payable in cash             12.50%      
Additional consideration             $ 200,000      
Exchange Agreement [Member] | December 2019 [Member]                    
Conversion price           $ 12.20   $ 12.20    
Additional consideration               $ 200,000    
Principal Outstanding Combined Revised Balance           $ 2,934,000        
Common stock issued for note exchange, shares           21,750   24,049    
Value for debt conversion           $ 200,000        
Amount converted to shares               $ 293,000    
Combined additional shares issued               467,000    
Additional notes issued in exchange               267,000    
Debt amount converted to shares               293,000    
Exchange Agreement [Member] | June 2018 December 2018 And March 2019 Notes                    
Payment in cash for settlement with investors               $ 2,047,000    
Shares issued for settlement with investors               103,593    
Elimination of combined default penalties and default interest               $ 2,194,000    
Exchange Agreement [Member] | June 2018 And December 2018 Notes                    
Conversion price               $ 12.20    
Common stock issued for note exchange, shares               41,004    
Amount converted to shares               $ 500,000    
Debt amount converted to shares               $ 500,000    
Additional shares issued for settlement of default               4,207    
Debt default interest               $ 51,000    
Exchange Agreement [Member] | December 2018 Notes [Member]                    
Principal outstanding             222,000      
Principal outstanding, Revised             $ 244,000      
Interest rate             10.00%      
Principal outstanding, Revised             $ 244,000      
Amendment and Exchange Agreements [Member]                    
Conversion price       $ 9.20            
Debt instrument, conversion original amount       $ 167,000            
Debt instrument converted amount shares issued       82,654            
Capitalization of accrued default interest       $ 59,000            
Warrants issued due to conversion of debt       162,950            
Warrants exercise price       $ 10.17            
Alpha Amendment and Exchange Agreement [Member]                    
Debt instrument, conversion original amount   $ 868,000   $ 723,000            
Debt instrument converted amount shares issued   94,298   66,123            
Capitalization of accrued default interest       $ 51,000            
Warrants issued due to conversion of debt       130,360            
Agreed additional notes       $ 145,000            
Osher Amendment and Exchange Agreement [Member]                    
Debt instrument, conversion original amount   $ 130,000   $ 108,000            
Debt instrument converted amount shares issued   14,023   16,531            
Capitalization of accrued default interest       $ 8,000            
Warrants issued due to conversion of debt       32,590            
Agreed additional notes       $ 22,000            
Exchange Agreement with CVI [Member]                    
Debt instrument, conversion original amount   $ 1,829,000 $ 1,829,000              
Debt instrument converted amount shares issued   198,756 260,719