Annual report pursuant to Section 13 and 15(d)

Related Parties (Details)

v3.20.4
Related Parties (Details) - USD ($)
1 Months Ended 12 Months Ended
Nov. 09, 2020
May 18, 2020
Nov. 06, 2019
Nov. 04, 2019
Oct. 16, 2019
Oct. 08, 2019
Oct. 07, 2019
May 16, 2019
Apr. 18, 2019
Apr. 17, 2019
Apr. 04, 2019
Feb. 06, 2019
Aug. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
May 31, 2019
Apr. 30, 2019
Issuance of common stock for warrant settlement                             $ 112,000    
Issuance of common stock and warrants, net of offering costs (in shares) 236,375 60,250                              
Warrants to purchase shares of Common Stock 45,534               12,756                
Warrants exercise price $ 2.55                                
Value of common stock issued                           $ 16,156,000 6,149,000    
Series A Preferred Stock                                  
Price per Unit                 $ 80.00                
Proceeds from Issuance of Convertible Preferred Stock                 $ 1,000,000         920,000      
Minimum | Series A Preferred Stock                                  
Proceeds from Issuance of Convertible Preferred Stock                 500,000                
Maximum | Series A Preferred Stock                                  
Proceeds from Issuance of Convertible Preferred Stock                 $ 5,000,000         500,000      
Medalist Funds [Member]                                  
Issuance of common stock and warrants, net of offering costs (in shares)       125,000   20,722                      
Payments of Stock Issuance Costs           $ 327,000                      
Convertible Notes Payable, Current       $ 47,223                          
Price per Unit       $ 14.00                          
Hansong Technology [Member]                                  
Purchase of wireless audio speaker systems from related party                         $ 360,000 214,000 378,000    
Payments for purchases                           $ 366,000 53,000    
Warrant [Member] | Alexander Capital, LP.                                  
Warrants to purchase shares of Common Stock                               6,114 2,041
Warrants exercise price                               $ 33.20 $ 43.60
Price per Unit                           $ 15.80   $ 27.20 $ 41.60
Warrant [Member] | Medalist Funds [Member]                                  
Warrants exercise price           $ 15.80                      
Sales To Related Party [Member] | Hansong Technology [Member]                                  
Revenue from Related Parties                           $ 175,000 64,000    
Payments for purchases                           $ 163,000 $ 23,000    
Jonathan Gazdak [Member]                                  
Debt Conversion Converted Instrument Percentage of Shares Held                           1.00% 1.00%    
Jonathan Gazdak [Member] | Warrant [Member]                                  
Issuance of common stock for warrant settlement             $ 2,510                    
Issuance of common stock and warrants, net of offering costs (in shares)     23                            
Number of Warrants Issued             157                    
Brian Herr [Member] | Medalist Funds [Member]                                  
Issuance of common stock for warrant settlement           $ 46,294                      
Issuance of common stock and warrants, net of offering costs (in shares)           2,894                      
Debt Conversion Converted Instrument Percentage of Shares Held                           5.00% 8.30%    
Helge Kristensen [Member]                                  
Debt Conversion Converted Instrument Percentage of Shares Held                           1.00% 1.00%    
Hansong Technology [Member]                                  
Payments for purchases                         $ 360,000        
Underwriting Agreement [Member] | Reimbursements [Member] | Alexander Capital, LP.                                  
Payments of Stock Issuance Costs             $ 51,374                    
Engagement Letter [Member] | Alexander Capital, LP.                                  
Payments of Stock Issuance Costs                     $ 80,000            
Number of Warrants Issued                     2,041            
Warrants exercise price                     $ 43.60            
Warrant term                     180 days            
Public Offering Underwriting Agreement [Member] | Alexander Capital, LP.                                  
Issuance of common stock and warrants, net of offering costs (in shares)                   203,787              
Payments of Stock Issuance Costs         $ 131,250         $ 406,554   $ 83,000          
Warrants exercise price         $ 17.500         $ 33.20   $ 8.80          
Warrant term         5 years         180 days   5 years          
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right         3,750             4,553          
Value of common stock issued                       $ 835,000          
Public Offering Underwriting Agreement [Member] | Alexander Capital, LP. | Maximum                                  
Issuance of common stock and warrants, net of offering costs (in shares)               125,000                  
Warrants to purchase shares of Common Stock                   6,114              
Public Offering Underwriting Agreement [Member] | Alexander Capital, LP. | Non Accountable Expense Allowance [Member]                                  
Payments of Stock Issuance Costs         $ 17,500         $ 54,207              
Public Offering Underwriting Agreement [Member] | Alexander Capital, LP. | Reimbursements [Member]                                  
Payments of Stock Issuance Costs         $ 43,750                 $ 100,000