v3.20.4
Notes Payable - Additional Information (Detail)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 19, 2020
Apr. 16, 2020
USD ($)
Mar. 11, 2020
USD ($)
Sep. 25, 2019
USD ($)
Installment
Aug. 15, 2018
USD ($)
Jan. 31, 2018
USD ($)
$ / shares
shares
Mar. 31, 2020
USD ($)
Feb. 01, 2020
USD ($)
Oct. 31, 2019
USD ($)
May 31, 2019
USD ($)
$ / shares
shares
Nov. 30, 2018
USD ($)
$ / shares
shares
Oct. 31, 2018
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
PromissoryNote
Apr. 30, 2018
USD ($)
Oct. 31, 2020
USD ($)
May 02, 2020
USD ($)
Sep. 30, 2019
USD ($)
Oct. 31, 2020
USD ($)
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]                                        
Convertible notes converted into shares of common stock | shares           57,029                            
Warrants exercisable into shares of common stock | shares           57,029                            
Exercise price of warrants, per share | $ / shares           $ 91.50                            
Amortization of debt discount           $ 271,000   $ 2,674,000                       $ 3,047,000
Amortization period of interest expense           3 years                            
Notes payable, outstanding amount             $ 1,800,000 16,359,000             $ 4,848,000   $ 24,200,000 $ 4,848,000 $ 24,200,000 16,359,000
(Loss) gain on debt conversion                                   13,642,000 (9,000)  
Accretion of discount               373,000                   666,000 2,133,000  
Interest expense               532,000             35,000   1,335,000 995,000 2,965,000  
Derivative liability               2,527,000                       1,721,000
Increase decrease in derivative liability               (807,000)                   543,000 277,000  
CARES Act [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, maturity date Apr. 16, 2022                                      
Percentage of loaned funds utilized 100.00%                                      
Threshold period to review the application 90 days                                      
Paycheck Protection Program [Member] | CARES Act [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate   1.00%                                    
Notes payable, issued amount   $ 3,098,000                                    
Notes payable, amount   $ 0                                    
Bank loan maturity term   2 years                                    
Notes Payable [Member]                                        
Debt Instrument [Line Items]                                        
Interest expense               158,000             $ 34,000   1,331,000 $ 325,000 $ 2,960,000  
Notes Payable [Member] | Termination Agreement [Member]                                        
Debt Instrument [Line Items]                                        
Debt instrument, periodic payment     $ 27,929                                  
Notes payable, amount     $ 335,152                                  
Note payable, frequency of periodic payment     twelve equal monthly installments                                  
Notes payable, first monthly installment due date     Apr. 30, 2020                                  
Notes Payable [Member] | Simply Mac, Inc. [Member]                                        
Debt Instrument [Line Items]                                        
(Loss) gain on debt conversion     $ 6,961,000                                  
Notes payable, onetime cash payment     250,000                                  
Escrow deposit disbursements     $ 345,000                                  
4.02% Promissory Note Due April 2021 [Member] | Notes Payable [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate             6.00%             4.02%            
Aggregate principal amount of converted notes to common stock                 $ 204,000                      
Notes payable, outstanding amount                 704,000             $ 500,000        
Notes payable, issued amount                           $ 1,000,000            
Notes payable, maturity date                           Apr. 30, 2021   Dec. 31, 2020        
8% Promissory Notes Due March 2021 [Member] | Notes Payable [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate                         8.00%              
Notes payable, issued amount                         $ 2,107,000              
Notes payable, maturity date                                     Mar. 31, 2021  
Number of promissory notes | PromissoryNote                         12              
12% Convertible Notes Due October 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Convertible notes converted into shares of common stock | shares                       94,118                
Warrants exercisable into shares of common stock | shares                       47,059                
Exercise price of warrants, per share | $ / shares                       $ 42.50                
Amortization of debt discount                       $ 1,942,000                
Amortization period of interest expense                       1 year                
Notes payable, outstanding amount               $ 1,775,000                       $ 1,775,000
12% Convertible Notes Due October 2019 [Member] | Notes Payable [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate               12.00%             12.00%     12.00%   12.00%
Notes payable, maturity date               Oct. 31, 2019                   Oct. 31, 2019   Oct. 31, 2019
12% Convertible Notes Due November 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Convertible notes converted into shares of common stock | shares                     27,727                  
Warrants exercisable into shares of common stock | shares                     13,864                  
Exercise price of warrants, per share | $ / shares                     $ 44.00                  
Amortization of debt discount                     $ 118,000                  
Amortization period of interest expense                     1 year                  
Aggregate principal amount of converted notes to common stock                 820,000                      
Notes payable, outstanding amount               $ 400,000 400,000                     $ 400,000
(Loss) gain on debt conversion                 (5,000)                      
Accretion of discount                                     $ 88,000  
12% Convertible Notes Due November 2019 [Member] | Notes Payable [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate               12.00%             12.00%     12.00%   12.00%
Notes payable, maturity date               Nov. 30, 2019                   Nov. 30, 2019   Nov. 30, 2019
12% Convertible Notes Due May 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Convertible notes converted into shares of common stock | shares                   125,900                    
Warrants exercisable into shares of common stock | shares                   62,950                    
Exercise price of warrants, per share | $ / shares                   $ 27.20                    
Amortization of debt discount                   $ 940,000                    
Amortization period of interest expense                   1 year                    
Notes payable, outstanding amount               $ 1,500,000                       $ 1,500,000
Accretion of discount                                 235,000   352,000  
12% Convertible Notes Due May 2020 [Member] | Notes Payable [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate               12.00%             12.00%     12.00%   12.00%
Notes payable, maturity date               May 31, 2020                   May 31, 2020   May 31, 2020
12% Convertible Notes Due July, August and September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Warrants value                 3,586,000                      
Amortization of debt discount                               $ 4,368,000 $ 4,368,000   4,368,000  
Amortization period of interest expense                                 1 year      
Aggregate principal amount of converted notes to common stock                                 $ 316,000      
Notes payable, outstanding amount               $ 4,235,000                 4,235,000   4,235,000 $ 4,235,000
(Loss) gain on debt conversion                                 (190,000)      
Accretion of discount               339,000                   $ 605,000    
12% Secured Promissory Note Due September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, outstanding amount               $ 7,858,000                       $ 7,858,000
12% Secured Promissory Note Due September 2020 [Member] | Notes Payable [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate               12.00%             12.00%     12.00%   12.00%
Notes payable, maturity date               Sep. 30, 2020                   Sep. 30, 2020   Sep. 30, 2020
12% Secured Promissory Note Due September 2020 [Member] | Notes Payable [Member] | Simply Mac, Inc. [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate       12.00%                                
Notes payable, outstanding amount       $ 7,858,000                                
Notes payable, issued amount       7,858,000                                
Debt instrument, periodic payment       $ 1,965,000                                
Number of equal installments of principal value of note | Installment       4                                
Installment period of note       3 months                                
Amended Promissory Note [Member] | Notes Payable [Member] | Simply Mac, Inc. [Member]                                        
Debt Instrument [Line Items]                                        
Notes payable, interest rate     6.00%                                  
Notes payable, outstanding amount     $ 1,250,000                                  
Notes payable, maturity date     Feb. 17, 2024                                  
Interest Expense [Member] | 12% Convertible Notes Due July, August and September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
(Loss) gain on debt conversion                                 1,946,000      
Other Income (Expense) [Member] | 12% Convertible Notes Due July, August and September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Increase decrease in derivative liability               $ (806,000)                   $ 543,000    
Valuation, Market Approach [Member] | 12% Convertible Notes Due July, August and September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Derivative liability                               $ 7,954,000        
Convertible Notes and Warrants [Member]                                        
Debt Instrument [Line Items]                                        
Convertible notes amount           $ 1,000,000                            
Convertible notes term           3 years                            
Notes payable, interest rate           0.00%                            
Warrants value           $ 127,000                            
Conversion feature value           144,000                            
Debt value           $ 729,000                            
Aggregate principal amount of converted notes to common stock         $ 725,000   $ 91,000   184,000                      
Notes payable, outstanding amount         $ 275,000       91,000                      
Accretion of discount                                 6,000 $ 1,000 18,000  
Convertible Notes and Warrants [Member] | 12% Convertible Notes Due October 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Convertible notes amount                       $ 4,000,000                
Convertible notes term                       1 year                
Notes payable, interest rate                       12.00%     6.00%     6.00%    
Warrants value                       $ 769,000                
Conversion feature value                       1,173,000                
Debt value                       $ 2,058,000                
Aggregate principal amount of converted notes to common stock                 2,225,000                 $ 1,700,000    
Notes payable, outstanding amount                 1,775,000           $ 75,000     $ 75,000    
(Loss) gain on debt conversion                 (8,000)                      
Accretion of discount                                 485,000   1,456,000  
Notes payable, maturity date                                   Jun. 30, 2020    
Convertible Notes and Warrants [Member] | 12% Convertible Notes Due November 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Convertible notes amount                     $ 1,220,000                  
Convertible notes term                     1 year                  
Notes payable, interest rate                     12.00%                  
Warrants value                     $ 118,000                  
Debt value                     $ 1,102,000                  
Accretion of discount                                 29,000      
Convertible Notes and Warrants [Member] | 12% Convertible Notes Due May 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Convertible notes amount                   $ 3,500,000                    
Convertible notes term                   1 year                    
Notes payable, interest rate                   12.00%                    
Warrants value                   $ 507,000                    
Conversion feature value                   243,000                    
Debt value                   2,750,000                    
Aggregate principal amount of converted notes to common stock                   2,000,000                    
Notes payable, outstanding amount                   1,500,000                    
(Loss) gain on debt conversion                   57,000                    
Accretion of discount                                   $ 60,000    
Fundraising costs                   190,000                    
Convertible Notes and Warrants [Member] | 12% Convertible Notes Due July, August and September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Convertible notes amount                                 $ 4,551,000   $ 4,551,000  
Convertible notes term                                 1 year      
Notes payable, interest rate                                 12.00%   12.00%  
Warrants value                                 $ 1,897,000   $ 1,897,000  
Conversion feature value                                 2,471,000      
Debt value                                 $ 182,000   $ 182,000  
Convertible Notes and Warrants [Member] | Interest Expense [Member]                                        
Debt Instrument [Line Items]                                        
(Loss) gain on debt conversion             $ 5,000   $ (15,000)                      
Convertible Notes and Warrants [Member] | Interest Expense [Member] | 12% Convertible Notes Due May 2020 [Member]                                        
Debt Instrument [Line Items]                                        
(Loss) gain on debt conversion                   $ (304,000)                    
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption           105                            
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | 12% Convertible Notes Due October 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                       90                
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | 12% Convertible Notes Due November 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                     90                  
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | 12% Convertible Notes Due May 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                   105                    
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption           2.20                            
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member] | 12% Convertible Notes Due October 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                       2.47                
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member] | 12% Convertible Notes Due November 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                     2.52                  
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member] | 12% Convertible Notes Due May 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                   2.33                    
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Entity Credit Risk [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption           7.70                            
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Discount Rate [Member] | 12% Convertible Notes Due October 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                       25                
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Discount Rate [Member] | 12% Convertible Notes Due November 2019 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                     25                  
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Discount Rate [Member] | 12% Convertible Notes Due May 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                   30                    
Warrants [Member] | Convertible Notes [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member] | 12% Convertible Notes Due July, August and September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                                 70   70  
Warrants [Member] | Convertible Notes [Member] | Valuation, Market Approach [Member] | Measurement Input, Exercise Price [Member] | Certain Portion of 12% Convertible Notes Due July, August and September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                                 20   20  
Warrants [Member] | Convertible Notes [Member] | Valuation, Market Approach [Member] | Measurement Input, Exercise Price [Member] | Other Portion of 12% Convertible Notes Due July, August and September 2020 [Member]                                        
Debt Instrument [Line Items]                                        
Fair value assumption                                 30   30