v3.19.3
Notes Payable - Additional Information (Detail)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 25, 2019
USD ($)
Installment
Aug. 15, 2018
USD ($)
Jan. 31, 2018
USD ($)
$ / shares
shares
May 31, 2019
USD ($)
$ / shares
shares
Apr. 30, 2019
USD ($)
Nov. 30, 2018
USD ($)
$ / shares
shares
Oct. 31, 2018
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
PromissoryNote
Aug. 31, 2018
USD ($)
Apr. 30, 2018
USD ($)
Aug. 31, 2017
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]                                
Notes payable, outstanding amount                       $ 24,215,000   $ 24,215,000   $ 9,117,000
Convertible notes converted into shares of common stock | shares     570,287                          
Warrants exercisable into shares of common stock | shares     570,287                          
Exercise price of warrants, per share | $ / shares     $ 9.15                          
Amortization of debt discount     $ 271,000                 4,956,000   4,956,000   1,780,000
Amortization period of interest expense     3 years                          
Loss on debt conversion                           9,000    
Accretion of discount                           (2,133,000) $ (461,000)  
Notes remaining balance paid                           811,000 2,014,000  
Derivative liability                       4,091,000   4,091,000    
Decrease in derivative liability                           277,000    
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                            
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                            
Accretion of discount                       6,000   18,000    
Convertible Notes and Warrants [Member] | Interest Expense [Member]                                
Debt Instrument [Line Items]                                
Loss on debt conversion   $ 163,000                            
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]                                
Interest expense                       $ 1,331,000 $ 506,000 $ 2,959,000,000 1,028,000  
8% Secured Promissory Notes Due August 2018 [Member]                                
Debt Instrument [Line Items]                                
Notes payable, outstanding amount                               $ 250,000
8% Secured Promissory Notes Due August 2018 [Member] | Notes Payable [Member]                                
Debt Instrument [Line Items]                                
Notes payable, issued amount                     $ 250,000          
Convertible notes term                     1 year          
Notes payable, interest rate                     8.00% 8.00%   8.00%   8.00%
Notes payable, outstanding amount                     $ 250,000          
Notes payable, maturity date                           Aug. 31, 2018   Aug. 31, 2018
4.02% Promissory Note Due April 2021 [Member] | Notes Payable [Member]                                
Debt Instrument [Line Items]                                
Notes payable, issued amount                   $ 1,000,000   $ 704,000   $ 704,000    
Notes payable, interest rate                   4.02%            
Notes payable, maturity date                   Apr. 30, 2021            
Annual principal payments,2019                   $ 305,000            
Annual principal payments,2020                   359,000            
Annual principal payments,2021                   $ 183,000            
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, maturity date                           Apr. 30, 2019   Apr. 30, 2019
0% Promissory Note Due April 2019 [Member] | Notes Payable [Member] | Unitron Assets [Member]                                
Debt Instrument [Line Items]                                
Notes payable, interest rate                 0.00%              
Notes payable, maturity date                 Apr. 30, 2019              
Assumption of debt under merger consideration                 $ 868,000              
Notes remaining balance paid         $ 418,000                      
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] | Unitron Assets [Member]                                
Debt Instrument [Line Items]                                
Notes payable, interest rate                 0.00%              
Notes payable, maturity date                 Oct. 31, 2018              
Notes remaining balance paid             $ 450,000                  
8% Promissory Note Due March 2021 [Member]                                
Debt Instrument [Line Items]                                
Notes payable, outstanding amount                       $ 2,107,000   $ 2,107,000   $ 2,107,000
8% Promissory Note Due March 2021 [Member] | Notes Payable [Member]                                
Debt Instrument [Line Items]                                
Notes payable, issued amount               $ 2,107,000         $ 2,107,000   $ 2,107,000  
Notes payable, interest rate               8.00%       8.00% 8.00% 8.00% 8.00% 8.00%
Notes payable, maturity date                           Mar. 31, 2021   Mar. 31, 2021
Number of promissory notes | PromissoryNote               12                
12% Convertible Notes Due October 2019 [Member]                                
Debt Instrument [Line Items]                                
Notes payable, outstanding amount                       $ 4,000,000   $ 4,000,000   $ 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                  
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                       $ 485,000   $ 1,456,000    
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%   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                       $ 1,220,000   $ 1,220,000   $ 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                    
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                       $ 29,000   $ 88,000    
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%   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                       $ 3,500,000   $ 3,500,000    
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                        
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%                        
Convertible notes amount       $ 3,500,000                        
Warrants value       507,000                        
Conversion feature value       243,000                        
Debt value       2,750,000                        
Accretion of discount                       $ 235,000   $ 352,000    
Fundraising costs       $ 190,000                        
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%   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]                                
Amortization of debt discount                       $ 4,368,000   $ 4,368,000    
Amortization period of interest expense                       1 year        
Derivative liability                       $ 4,091,000   $ 4,091,000    
12% Convertible Notes Due July, August and September 2020 [Member] | Other Income [Member]                                
Debt Instrument [Line Items]                                
Decrease in derivative liability                       $ 277,000        
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%   12.00%    
Convertible notes amount                       $ 4,551,000   $ 4,551,000    
Warrants value                       1,897,000   1,897,000    
Conversion feature value                       2,471,000        
Debt value                       182,000   $ 182,000    
Accretion of discount                       $ 217,000        
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   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   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   30    
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%
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, issued amount $ 7,858,000                              
Notes payable, interest rate 12.00%                              
Number of equal installments of principal value of note | Installment 4                              
Installment period of note 3 months                              
Maximum percentage of remaining principal balance of note 65.00%