Quarterly report [Sections 13 or 15(d)]

Business and Summary of Significant Accounting Policies - Narratives (Details)

v3.25.1
Business and Summary of Significant Accounting Policies - Narratives (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 04, 2024
Apr. 30, 2024
Mar. 31, 2025
USD ($)
segment
customer
shares
Mar. 31, 2024
USD ($)
customer
shares
Dec. 31, 2024
USD ($)
customer
Business and Summary of Significant Accounting Policies          
Reverse stock split ratio 0.0067 0.0067      
Allowance for credit losses | $     $ 0   $ 0
Deferred offering costs capitalized | $     $ 117,000   0
Warranty period of company products (in years)     1 year    
Number of operating segments | segment     1    
Practical expedient applied for remaining performance obligation     false    
Advertising costs | $     $ 146,000 $ 147,000  
Interest and penalties | $     0   0
Revenue recognized | $     $ 49,000   $ 49,000
Maximum          
Business and Summary of Significant Accounting Policies          
Estimated useful life of property and equipment (in years)     5 years    
Minimum          
Business and Summary of Significant Accounting Policies          
Estimated useful life of property and equipment (in years)     2 years    
Warrant          
Business and Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share (in shares) | shares     15,204,647 1,985,138  
Restricted stock          
Business and Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share (in shares) | shares     64,183 5,362  
Restricted stock units          
Business and Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share (in shares) | shares     1,200,000 17  
Restricted stock awards          
Business and Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share (in shares) | shares     7,014,260    
Convertible Preferred Stock          
Business and Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share (in shares) | shares     12 14  
Series A Preferred Stock          
Business and Summary of Significant Accounting Policies          
Dividend rate (in %)     8.00%    
Accounts Receivable | Customer Concentration Risk          
Business and Summary of Significant Accounting Policies          
Number of customers | customer     3   3
Accounts Receivable | Customer Concentration Risk | Customer 1          
Business and Summary of Significant Accounting Policies          
Concentration risk percentage (in %)     34.00%   68.00%
Accounts Receivable | Customer Concentration Risk | Customer 2          
Business and Summary of Significant Accounting Policies          
Concentration risk percentage (in %)     33.00%   12.00%
Accounts Receivable | Customer Concentration Risk | Customer 3          
Business and Summary of Significant Accounting Policies          
Concentration risk percentage (in %)     12.00%   11.00%
Net Revenue | Customer Concentration Risk          
Business and Summary of Significant Accounting Policies          
Number of customers | customer       3  
Net Revenue | Customer Concentration Risk | Customer 1          
Business and Summary of Significant Accounting Policies          
Concentration risk percentage (in %)     29.00% 35.00%  
Net Revenue | Customer Concentration Risk | Customer 2          
Business and Summary of Significant Accounting Policies          
Concentration risk percentage (in %)     25.00% 29.00%  
Net Revenue | Customer Concentration Risk | Customer 3          
Business and Summary of Significant Accounting Policies          
Concentration risk percentage (in %)     18.00% 21.00%