Quarterly report pursuant to Section 13 or 15(d)

Business and Summary of Significant Accounting Policies (Details)

v3.23.3
Business and Summary of Significant Accounting Policies (Details)
3 Months Ended 9 Months Ended 12 Months Ended
Oct. 05, 2023
$ / shares
Mar. 20, 2023
USD ($)
Feb. 13, 2023
$ / shares
Jan. 24, 2023
Jan. 18, 2023
$ / shares
Jun. 23, 2022
$ / shares
Sep. 30, 2023
USD ($)
customer
Sep. 30, 2022
USD ($)
customer
Sep. 30, 2023
USD ($)
customer
segment
shares
Sep. 30, 2022
USD ($)
customer
shares
Dec. 31, 2022
USD ($)
customer
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Jun. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Business and Summary of Significant Accounting Policies                                
Closing bid price | $ / shares $ 1.00   $ 1.00   $ 0.10 $ 1.00                    
Consecutive business days to maintain bid price requirement 10 days   10 days   10 days                      
Stockholders' Equity Requirement   $ 2,500,000                 $ 2,500,000          
Stockholders' equity (deficit)   $ 1,996,000                            
Stockholders' equity             $ 885,000 $ 5,352,000 $ 885,000 $ 5,352,000 (1,996,000) [1] $ 5,861,000 $ 7,763,000 $ 9,384,000 $ 12,986,000 $ 16,377,000
Number of operating segments | segment                 1              
Reverse stock split       0.01         0.01              
Allowance for doubtful accounts             0   $ 0   0          
Deferred offering costs             210,000   $ 210,000   $ 206,000          
Remaining performance obligation                 false              
Advertising costs             238,000 300,000 $ 511,000 704,000            
Deemed dividends             $ 0 $ 0 $ 0 $ 0            
Warranty period of company products                 1 year              
Warrant                                
Business and Summary of Significant Accounting Policies                                
Antidilutive securities excluded from computation of earnings per share, amount | shares                 5,635,290 67,028            
Restricted stock                                
Business and Summary of Significant Accounting Policies                                
Antidilutive securities excluded from computation of earnings per share, amount | shares                 10,386 16,775            
Restricted stock units                                
Business and Summary of Significant Accounting Policies                                
Antidilutive securities excluded from computation of earnings per share, amount | shares                 2,667 2,906            
Convertible Preferred Stock                                
Business and Summary of Significant Accounting Policies                                
Antidilutive securities excluded from computation of earnings per share, amount | shares                 5,466 7,316            
Accounts Receivable | Customer Concentration Risk                                
Business and Summary of Significant Accounting Policies                                
Number of customers | customer                 2   2          
Accounts Receivable | Customer Concentration Risk | Customer 1                                
Business and Summary of Significant Accounting Policies                                
Concentration risk, percentage                 78.00%   62.00%          
Accounts Receivable | Customer Concentration Risk | Customer 2                                
Business and Summary of Significant Accounting Policies                                
Concentration risk, percentage                 11.00%   12.00%          
Sales Revenue, Net | Customer Concentration Risk                                
Business and Summary of Significant Accounting Policies                                
Number of customers | customer             3 3 4 3            
Sales Revenue, Net | Customer Concentration Risk | Customer 1                                
Business and Summary of Significant Accounting Policies                                
Concentration risk, percentage             40.00% 42.00% 22.00% 20.00%            
Sales Revenue, Net | Customer Concentration Risk | Customer 2                                
Business and Summary of Significant Accounting Policies                                
Concentration risk, percentage             28.00% 16.00% 17.00% 18.00%            
Sales Revenue, Net | Customer Concentration Risk | Customer 3                                
Business and Summary of Significant Accounting Policies                                
Concentration risk, percentage             21.00% 12.00% 16.00% 16.00%            
Sales Revenue, Net | Customer Concentration Risk | Customer 4                                
Business and Summary of Significant Accounting Policies                                
Concentration risk, percentage                 15.00%              
[1] The condensed consolidated balance sheet as of December 31, 2022 was derived from the audited consolidated balance sheet as of that date.