v3.20.1
Notes Payable - Additional Information (Detail)
1 Months Ended 2 Months Ended 5 Months Ended 12 Months Ended
Sep. 25, 2019
USD ($)
Installment
Aug. 15, 2018
USD ($)
Jan. 31, 2018
USD ($)
$ / shares
shares
Oct. 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
May 31, 2019
USD ($)
$ / shares
shares
Nov. 30, 2018
USD ($)
$ / shares
shares
Oct. 31, 2018
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
PromissoryNote
Aug. 31, 2018
USD ($)
Apr. 30, 2018
USD ($)
Aug. 31, 2017
USD ($)
May 29, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
$ / shares
Jan. 01, 2020
Jun. 01, 2018
$ / shares
shares
Debt Instrument [Line Items]                                  
Notes payable, amount repaid/retired                           $ 811,000 $ 1,763,000    
Notes payable, outstanding amount                           16,359,000 $ 9,117,000    
Convertible notes converted into shares of common stock | shares     570,287                            
Warrants exercisable into shares of common stock | shares     570,287                           1,183,116
Exercise price of warrants, per share | $ / shares     $ 9.15                       $ 3.73   $ 3.02
Amortization of debt discount     $ 271,000                     3,047,000 $ 1,780,000    
Amortization period of interest expense     3 years                            
Aggregate principal amount of converted notes to common stock                           8,001,000 11,445,000    
Loss on debt conversion                           4,057,000 1,227,000    
Accretion of discount                           3,519,000 800,000    
Interest expense                           4,876,000 1,229,000    
Amortization of debt discount     $ 271,000                     3,047,000 1,780,000    
Derivative liability                           1,721,000      
Decrease in derivative liability                           6,233,000      
Convertible Notes and Warrants [Member]                                  
Debt Instrument [Line Items]                                  
Convertible notes term     3 years                            
Notes payable, interest rate     0.00%                            
Notes payable, outstanding amount   $ 275,000   $ 91,000                          
Convertible notes amount     $ 1,000,000                            
Warrants value     127,000                            
Conversion feature value     144,000                            
Debt value     $ 729,000                            
Aggregate principal amount of converted notes to common stock   725,000   184,000                          
Accretion of discount                           33,000 45,000    
Convertible Notes and Warrants [Member] | Interest Expense [Member]                                  
Debt Instrument [Line Items]                                  
Loss on debt conversion   163,000   15,000                          
Subsequent Events [Member] | Convertible Notes and Warrants [Member]                                  
Debt Instrument [Line Items]                                  
Aggregate principal amount of converted notes to common stock                         $ 91,000        
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, Risk Free Interest Rate [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption     2.20                            
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Entity Credit Risk [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption     7.70                            
Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Accretion of discount                           3,519,000 629,000    
Interest expense                           $ 4,867,000 1,153,000    
8% Secured Promissory Notes Due February 2019 [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount                             $ 250,000    
8% Secured Promissory Notes Due February 2019 [Member] | Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Convertible notes term                       1 year          
Notes payable, interest rate                       8.00%   8.00% 8.00%    
Notes payable, issued amount                       $ 1,350,000          
Notes payable, amount repaid/retired   $ 750,000               $ 350,000              
Notes payable, outstanding amount                           $ 250,000      
Notes payable, maturity date                           Feb. 28, 2019 Feb. 28, 2019    
4.02% Promissory Note Due April 2021 [Member] | Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                     4.02%            
Notes payable, issued amount                     $ 1,000,000            
Notes payable, outstanding amount       500,000                   $ 704,000 $ 847,000    
Aggregate principal amount of converted notes to common stock       204,000                          
Notes payable, maturity date                     Apr. 30, 2021     Dec. 31, 2020      
4.02% Promissory Note Due April 2021 [Member] | Notes Payable [Member] | Subsequent Events [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                               6.00%  
8% Promissory Note Due March 2021 [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount                             $ 2,107,000    
8% Promissory Note Due March 2021 [Member] | Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                 8.00%         8.00% 8.00%    
Notes payable, issued amount                 $ 2,107,000                
Notes payable, maturity date                           Mar. 31, 2021 Mar. 31, 2021    
Number of promissory notes | PromissoryNote                 12                
0% Promissory Note Due April 2019 [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount                             $ 418,000    
0% Promissory Note Due April 2019 [Member] | Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                   0.00%       0.00% 0.00%    
Notes payable, amount repaid/retired                   $ 418,000              
Notes payable, maturity date                   Apr. 30, 2019       Apr. 30, 2019 Apr. 30, 2019    
Assumption of debt under merger consideration                   $ 868,000              
Notes payable, maturity date, description                   $450,000 paid in October 2018 and $418,000 paid in April 2019              
0% Promissory Note Due October 2018 [Member] | Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                   0.00%              
Notes payable, amount repaid/retired               $ 450,000                  
Notes payable, maturity date                   Oct. 31, 2018              
12% Convertible Notes Due October 2019 [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount       1,775,000,000                   $ 1,775,000 $ 4,000,000    
Convertible notes converted into shares of common stock | shares               941,181                  
Warrants exercisable into shares of common stock | shares               470,592                  
Exercise price of warrants, per share | $ / shares               $ 4.25                  
Amortization of debt discount               $ 1,942,000                  
Amortization period of interest expense               1 year                  
Aggregate principal amount of converted notes to common stock       2,225,000,000                          
Loss on debt conversion       8,000,000                          
Accretion of discount                           1,610,000,000      
Debt instrument face amount with extended maturity                           $ 1,300,000,000      
Amortization of debt discount               $ 1,942,000                  
12% Convertible Notes Due October 2019 [Member] | Convertible Notes and Warrants [Member]                                  
Debt Instrument [Line Items]                                  
Convertible notes term               1 year                  
Notes payable, interest rate               12.00%                  
Convertible notes amount               $ 4,000,000                  
Warrants value               769,000                  
Conversion feature value               1,173,000                  
Debt value               $ 2,058,000                  
Accretion of discount                             $ 324,000    
12% Convertible Notes Due October 2019 [Member] | Subsequent Events [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                         6.00%        
Notes payable, outstanding amount                         $ 75,000,000        
Aggregate principal amount of converted notes to common stock                         $ 1,700,000,000        
Notes payable, maturity date                         Jun. 30, 2020        
12% Convertible Notes Due October 2019 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption               90                  
12% Convertible Notes Due October 2019 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption               2.47                  
12% Convertible Notes Due October 2019 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Discount Rate [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption               25                  
12% Convertible Notes Due October 2019 [Member] | Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                           12.00% 12.00%    
Notes payable, maturity date                           Oct. 31, 2019 Oct. 31, 2019    
12% Convertible Notes Due November 2019 [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount       400,000,000                   $ 400,000 $ 1,220,000    
Convertible notes converted into shares of common stock | shares             277,274                    
Warrants exercisable into shares of common stock | shares             138,638                    
Exercise price of warrants, per share | $ / shares             $ 4.40                    
Amortization of debt discount             $ 118,000                    
Amortization period of interest expense             1 year                    
Aggregate principal amount of converted notes to common stock       820,000,000                          
Loss on debt conversion       5,000,000                          
Accretion of discount                           $ 104,000,000      
Amortization of debt discount             $ 118,000                    
12% Convertible Notes Due November 2019 [Member] | Convertible Notes and Warrants [Member]                                  
Debt Instrument [Line Items]                                  
Convertible notes term             1 year                    
Notes payable, interest rate             12.00%                    
Convertible notes amount             $ 1,220,000                    
Warrants value             118,000                    
Debt value             $ 1,102,000                    
Accretion of discount                             $ 10,000    
12% Convertible Notes Due November 2019 [Member] | Subsequent Events [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount                         $ 64,000,000        
Aggregate principal amount of converted notes to common stock                         400,000,000        
12% Convertible Notes Due November 2019 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption             90                    
12% Convertible Notes Due November 2019 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption             2.52                    
12% Convertible Notes Due November 2019 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Discount Rate [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption             25                    
12% Convertible Notes Due November 2019 [Member] | Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                           12.00% 12.00%    
Notes payable, maturity date                           Nov. 30, 2019 Nov. 30, 2019    
12% Convertible Notes Due May 2020 [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount                           $ 1,500,000      
Convertible notes converted into shares of common stock | shares           1,258,996                      
Warrants exercisable into shares of common stock | shares           629,500                      
Exercise price of warrants, per share | $ / shares           $ 2.72                      
Amortization of debt discount           $ 940,000                      
Amortization period of interest expense           1 year                      
Amortization of debt discount           $ 940,000                      
12% Convertible Notes Due May 2020 [Member] | Convertible Notes and Warrants [Member]                                  
Debt Instrument [Line Items]                                  
Convertible notes term           1 year                      
Notes payable, interest rate           12.00%                      
Notes payable, outstanding amount           $ 1,500,000                      
Convertible notes amount           3,500,000                      
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                      
Accretion of discount           485,000                      
Fundraising costs           190,000                      
12% Convertible Notes Due May 2020 [Member] | Convertible Notes and Warrants [Member] | Interest Expense [Member]                                  
Debt Instrument [Line Items]                                  
Loss on debt conversion           $ 304,000                      
12% Convertible Notes Due May 2020 [Member] | Subsequent Events [Member]                                  
Debt Instrument [Line Items]                                  
Aggregate principal amount of converted notes to common stock                         1,500,000        
12% Convertible Notes Due May 2020 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption           105                      
12% Convertible Notes Due May 2020 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption           2.33                      
12% Convertible Notes Due May 2020 [Member] | Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Discount Rate [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption           30                      
12% Convertible Notes Due May 2020 [Member] | Notes Payable [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, interest rate                           12.00% 12.00%    
Notes payable, maturity date                           May 31, 2020 May 31, 2020    
12% Convertible Notes Due July, August and September 2020 [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount       4,235,000,000                   $ 4,235,000      
Warrants value       3,586,000                          
Amortization of debt discount         $ 4,368,000                 4,368,000      
Amortization period of interest expense         1 year                        
Aggregate principal amount of converted notes to common stock       316,000,000                          
Loss on debt conversion       $ 190,000,000                          
Amortization of debt discount         $ 4,368,000                 4,368,000      
Derivative liability                           1,721,000      
12% Convertible Notes Due July, August and September 2020 [Member] | Other Income [Member]                                  
Debt Instrument [Line Items]                                  
Decrease in derivative liability                           6,233,000      
12% Convertible Notes Due July, August and September 2020 [Member] | Valuation, Market Approach [Member]                                  
Debt Instrument [Line Items]                                  
Derivative liability                           7,954,000      
12% Convertible Notes Due July, August and September 2020 [Member] | Convertible Notes and Warrants [Member]                                  
Debt Instrument [Line Items]                                  
Convertible notes term         1 year                        
Notes payable, interest rate         12.00%                        
Convertible notes amount         $ 4,551,000                        
Warrants value         1,897,000                        
Conversion feature value         2,471,000                        
Debt value         $ 182,000                        
Accretion of discount                           1,288,000      
12% Convertible Notes Due July, August and September 2020 [Member] | Subsequent Events [Member]                                  
Debt Instrument [Line Items]                                  
Aggregate principal amount of converted notes to common stock                         $ 4,235,000,000        
12% Convertible Notes Due July, August and September 2020 [Member] | Warrants [Member] | Convertible Notes [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption         70                        
Certain Portion of 12% Convertible Notes Due July, August and September 2020 [Member] | Warrants [Member] | Convertible Notes [Member] | Valuation, Market Approach [Member] | Measurement Input, Exercise Price [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption         20                        
Other Portion of 12% Convertible Notes Due July, August and September 2020 [Member] | Warrants [Member] | Convertible Notes [Member] | Valuation, Market Approach [Member] | Measurement Input, Exercise Price [Member]                                  
Debt Instrument [Line Items]                                  
Fair value assumption         30                        
12% Secured Promissory Note Due September 2020 [Member]                                  
Debt Instrument [Line Items]                                  
Notes payable, outstanding amount                           $ 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%    
Notes payable, maturity date                           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, issued amount $ 7,858,000                                
Notes payable, outstanding amount $ 7,858,000                                
Number of equal installments of principal value of note | Installment 4                                
Debt instrument, periodic payment $ 1,965,000,000                                
Installment period of note 3 months