Quarterly report pursuant to Section 13 or 15(d)

Debt - Additional Information (Details)

v3.19.3
Debt - Additional Information (Details)
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
LineofCredit
TermLoan
Sep. 30, 2019
EUR (€)
Apr. 30, 2019
USD ($)
Individual
$ / shares
shares
Apr. 30, 2019
EUR (€)
Individual
Sep. 30, 2017
USD ($)
Sep. 30, 2017
EUR (€)
Aug. 31, 2016
USD ($)
Aug. 31, 2016
EUR (€)
Jul. 31, 2016
USD ($)
$ / shares
shares
Sep. 30, 2019
USD ($)
LineofCredit
TermLoan
Sep. 30, 2018
USD ($)
Sep. 30, 2019
USD ($)
LineofCredit
TermLoan
Sep. 30, 2018
USD ($)
Sep. 30, 2019
EUR (€)
LineofCredit
TermLoan
Apr. 30, 2019
EUR (€)
shares
Sep. 30, 2017
EUR (€)
Aug. 31, 2016
EUR (€)
Debt Instrument [Line Items]                                  
Debt discount amortization                   $ 7,520 $ 5,959 $ 13,786 $ 24,830        
July 2016 Note                                  
Debt Instrument [Line Items]                                  
Warrants to purchase common stock percentage equal to original principal                 20.00%                
Debt instrument, face amount                 $ 250,000                
Warrants exercise price | $ / shares                 $ 1.78                
Warrants to purchase common stock | shares                 28,090                
Estimated fair value of warrants                 $ 24,830                
July 2016 Note | Warrants | Exercise Price                                  
Debt Instrument [Line Items]                                  
Warrants exercise price | $ / shares                 $ 1.78                
July 2016 Note | Warrants | Contractual Term                                  
Debt Instrument [Line Items]                                  
Fair value assumptions                 7 years                
July 2016 Note | Warrants | Volatility Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions                 0.54                
July 2016 Note | Warrants | Dividend Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions                 0.00                
July 2016 Note | Warrants | Risk-free Interest Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions                 0.0142                
April 2019 Related Party Notes                                  
Debt Instrument [Line Items]                                  
Warrants to purchase common stock percentage equal to original principal     10.00% 10.00%                          
Debt instrument, face amount     $ 350,000                            
Warrants exercise price | $ / shares     $ 2.15                            
Warrants to purchase common stock | shares     16,276                       16,276    
Number of individuals | Individual     3 3                          
Term of loan agreement     2 years 2 years                          
Debt instrument, accrued interest rate     9.50%                       9.50%    
Debt instrument, monthly / quarterly principal and interest payments     $ 16,100                            
Estimated fair value of each warrants | $ / shares     $ 0.90                            
April 2019 Related Party Notes | Warrants                                  
Debt Instrument [Line Items]                                  
Estimated fair value of warrants     $ 14,037                            
April 2019 Related Party Notes | Warrants | Exercise Price                                  
Debt Instrument [Line Items]                                  
Warrants exercise price | $ / shares     $ 2.15                            
April 2019 Related Party Notes | Warrants | Contractual Term                                  
Debt Instrument [Line Items]                                  
Fair value assumptions     5 years                       5 years    
April 2019 Related Party Notes | Warrants | Volatility Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions     0.4460                       0.4460    
April 2019 Related Party Notes | Warrants | Dividend Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions     0.000                       0.000    
April 2019 Related Party Notes | Warrants | Risk-free Interest Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions     0.02307                       0.02307    
April 2019 Related Party Notes                                  
Debt Instrument [Line Items]                                  
Warrants to purchase common stock percentage equal to original principal     10.00% 10.00%                          
Debt instrument, face amount     $ 1,150,000                            
Warrants exercise price | $ / shares     $ 2.15                            
Warrants to purchase common stock | shares     53,490                       53,490    
Number of individuals | Individual     3 3                          
Term of loan agreement     2 years 2 years                          
Debt instrument, accrued interest rate     9.50%                       9.50%    
Debt instrument, monthly / quarterly principal and interest payments     $ 52,900                            
Estimated fair value of each warrants | $ / shares     $ 0.90                            
April 2019 Related Party Notes | Warrants                                  
Debt Instrument [Line Items]                                  
Estimated fair value of warrants     $ 46,121                            
April 2019 Related Party Notes | Warrants | Exercise Price                                  
Debt Instrument [Line Items]                                  
Warrants exercise price | $ / shares     $ 2.15                            
April 2019 Related Party Notes | Warrants | Contractual Term                                  
Debt Instrument [Line Items]                                  
Fair value assumptions     5 years                       5 years    
April 2019 Related Party Notes | Warrants | Volatility Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions     0.4260                       0.4260    
April 2019 Related Party Notes | Warrants | Dividend Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions     0.000                       0.000    
April 2019 Related Party Notes | Warrants | Risk-free Interest Rate                                  
Debt Instrument [Line Items]                                  
Fair value assumptions     0.023067                       0.023067    
Bressner Technology GmbH                                  
Debt Instrument [Line Items]                                  
Number of term loans outstanding | TermLoan 5                 5   5   5      
Bressner Technology GmbH | Term Loans                                  
Debt Instrument [Line Items]                                  
Total balance outstanding $ 1,598,206                 $ 1,598,206   $ 1,598,206   € 1,465,329      
Bressner Technology GmbH | Note Payable Maturing on September 30, 2020                                  
Debt Instrument [Line Items]                                  
Debt instrument, face amount             $ 272,670                   € 250,000
Debt instrument, accrued interest rate             2.125%                   2.125%
Debt instrument, monthly / quarterly principal and interest payments             $ 17,015 € 15,600                  
Total balance outstanding 51,480                 51,480   51,480   47,200      
Debt instrument, maturity date             Sep. 30, 2020 Sep. 30, 2020                  
Bressner Technology GmbH | Note Payable Maturing on April 30, 2020                                  
Debt Instrument [Line Items]                                  
Debt instrument, face amount         $ 436,272                     € 400,000  
Debt instrument, accrued interest rate         2.125%                     2.125%  
Debt instrument, monthly / quarterly principal and interest payments         $ 27,267 € 25,000                      
Total balance outstanding 245,403                 245,403   245,403   225,000      
Debt instrument, maturity date         Apr. 30, 2020 Apr. 30, 2020                      
Bressner Technology GmbH | Note Payable Maturing on April 30, 2020                                  
Debt Instrument [Line Items]                                  
Debt instrument, face amount     $ 545,340                       € 500,000    
Debt instrument, accrued interest rate     2.25%                       2.25%    
Debt instrument, monthly / quarterly principal and interest payments     $ 23,258 € 21,324                          
Total balance outstanding 428,779                 428,779   428,779   393,129      
Debt instrument, maturity date     Mar. 30, 2021 Mar. 30, 2021                          
Bressner Technology GmbH | Note Payable Maturing on April 30, 2020                                  
Debt Instrument [Line Items]                                  
Debt instrument, face amount $ 545,340                 $ 545,340   $ 545,340   € 500,000      
Debt instrument, accrued interest rate 1.7075%                 1.7075%   1.7075%   1.7075%      
Debt instrument, monthly / quarterly principal and interest payments $ 545,340 € 508,679                              
Debt instrument, maturity date Sep. 25, 2020 Sep. 25, 2020                              
Bressner Technology GmbH | Note Payable Maturing on April 30, 2020                                  
Debt Instrument [Line Items]                                  
Debt instrument, face amount $ 327,204                 $ 327,204   $ 327,204   € 300,000      
Debt instrument, accrued interest rate 1.65%                 1.65%   1.65%   1.65%      
Debt instrument, monthly / quarterly principal and interest payments $ 327,204 € 301,650                              
Debt instrument, maturity date Mar. 24, 2020 Mar. 24, 2020                              
German Institutions | Revolving Credit Facility | Bressner Technology GmbH                                  
Debt Instrument [Line Items]                                  
Number of lines of credit | LineofCredit 3                 3   3   3      
Line of credit facility, maximum borrowing capacity $ 3,599,244                 $ 3,599,244   $ 3,599,244   € 3,300,000      
Total outstanding balance $ 220,794                 $ 220,794   $ 220,794   € 202,437      
Minimum | German Institutions | Revolving Credit Facility | Bressner Technology GmbH                                  
Debt Instrument [Line Items]                                  
Line of credit current rate                       3.75%          
Maximum | German Institutions | Revolving Credit Facility | Bressner Technology GmbH                                  
Debt Instrument [Line Items]                                  
Line of credit current rate                       7.99%