Quarterly report pursuant to Section 13 or 15(d)

Debt - Additional Information (Details)

v3.20.1
Debt - Additional Information (Details)
1 Months Ended 3 Months Ended
Sep. 30, 2019
USD ($)
Jun. 30, 2019
USD ($)
Apr. 30, 2019
USD ($)
Individual
$ / shares
shares
Apr. 30, 2019
EUR (€)
Individual
Sep. 30, 2017
USD ($)
Sep. 30, 2017
EUR (€)
Mar. 31, 2020
USD ($)
LineofCredit
TermLoan
Mar. 31, 2019
USD ($)
Mar. 31, 2020
EUR (€)
LineofCredit
TermLoan
Dec. 31, 2019
USD ($)
Dec. 31, 2019
EUR (€)
Sep. 30, 2019
EUR (€)
Jun. 30, 2019
EUR (€)
Apr. 30, 2019
EUR (€)
shares
Sep. 30, 2017
EUR (€)
Debt Instrument [Line Items]                              
Debt discount amortization             $ 7,520 $ 0              
April 2019 Notes                              
Debt Instrument [Line Items]                              
Total balance outstanding             198,134     $ 241,054          
Debt instrument, face amount     $ 350,000                        
Debt instrument, interest rate     9.50%                     9.50%  
Debt instrument, monthly / quarterly principal and interest payments     $ 16,100                        
Number of individuals | Individual     3 3                      
Debt maturity term     2 years 2 years                      
Warrants to purchase common stock percentage equal to original principal     10.00% 10.00%                      
Warrants exercise price | $ / shares     $ 2.15                        
Warrants to purchase common stock | shares     16,276                     16,276  
Estimated fair value of each warrants | $ / shares     $ 0.90                        
April 2019 Notes | Warrants                              
Debt Instrument [Line Items]                              
Fair value of the warrant issued     $ 14,037                        
April 2019 Notes | Warrants | Exercise Price                              
Debt Instrument [Line Items]                              
Warrants exercise price | $ / shares     $ 2.15                        
April 2019 Notes | Warrants | Contractual Term                              
Debt Instrument [Line Items]                              
Fair value assumptions     5 years                     5 years  
April 2019 Notes | Warrants | Volatility Rate                              
Debt Instrument [Line Items]                              
Fair value assumptions     0.4460                     0.4460  
April 2019 Notes | Warrants | Dividend Rate                              
Debt Instrument [Line Items]                              
Fair value assumptions     0.000                     0.000  
April 2019 Notes | Warrants | Risk-free Interest Rate                              
Debt Instrument [Line Items]                              
Fair value assumptions     0.02307                     0.02307  
April 2019 Related Party Notes | Board of Directors                              
Debt Instrument [Line Items]                              
Total balance outstanding             $ 650,129     791,170          
Debt instrument, face amount     $ 1,150,000                        
Debt instrument, interest rate     9.50%                     9.50%  
Debt instrument, monthly / quarterly principal and interest payments     $ 52,900                        
Number of individuals | Individual     3 3                      
Debt maturity term     2 years 2 years                      
Warrants to purchase common stock percentage equal to original principal     10.00% 10.00%                      
Warrants exercise price | $ / shares     $ 2.15                        
Warrants to purchase common stock | shares     53,490                     53,490  
Estimated fair value of each warrants | $ / shares     $ 0.90                        
April 2019 Related Party Notes | Warrants                              
Debt Instrument [Line Items]                              
Fair value of the warrant issued     $ 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             2   2            
Bressner Technology GmbH | Term Loans                              
Debt Instrument [Line Items]                              
Total balance outstanding             $ 841,713   € 763,556 [1]            
Bressner Technology GmbH | Note Payable Maturing on January 31, 2020                              
Debt Instrument [Line Items]                              
Total balance outstanding                   28,068 € 25,000        
Debt instrument, face amount         $ 436,272                   € 400,000
Debt instrument, interest rate         2.125%                   2.125%
Debt instrument, monthly / quarterly principal and interest payments         $ 28,068 € 25,000                  
Debt instrument, maturity date         Jan. 31, 2020 Jan. 31, 2020                  
Bressner Technology GmbH | Note Payable Maturing on March 30, 2021                              
Debt Instrument [Line Items]                              
Total balance outstanding             290,534   263,556 368,835 328,525        
Debt instrument, face amount     $ 561,350                     € 500,000  
Debt instrument, interest rate     2.25%                     2.25%  
Debt instrument, monthly / quarterly principal and interest payments     $ 24,960 € 22,232                      
Debt instrument, maturity date     Mar. 30, 2021 Mar. 30, 2021                      
Bressner Technology GmbH | Note Payable Maturing on April 30, 2020                              
Debt Instrument [Line Items]                              
Total balance outstanding             $ 561,700   € 509,544 571,095 508,679        
Debt instrument, face amount   $ 551,180                     € 500,000    
Debt instrument, interest rate   1.70%                     1.70%    
Debt instrument, maturity date   Jun. 25, 2020                          
Debt instrument, extended maturity period             1 year                
Bressner Technology GmbH | Note Payable Maturing on March 24, 2020                              
Debt Instrument [Line Items]                              
Total balance outstanding                   338,663 € 301,650        
Debt instrument, face amount $ 336,810                     € 300,000      
Debt instrument, interest rate 1.65%                     1.65%      
Debt instrument, maturity date Mar. 24, 2020                            
German Institutions | Revolving Credit Facility | Bressner Technology GmbH                              
Debt Instrument [Line Items]                              
Number of lines of credit | LineofCredit             3   3            
Line of credit facility, maximum borrowing capacity             $ 3,968,492   € 3,600,000            
Outstanding lines of credit balance             $ 0     $ 0          
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%                
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