v3.26.1
Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
item
customer
$ / shares
shares
Jun. 30, 2025
USD ($)
item
customer
$ / shares
shares
Jun. 30, 2026
USD ($)
item
segment
customer
$ / shares
shares
Jun. 30, 2025
USD ($)
item
customer
$ / shares
shares
Dec. 31, 2025
USD ($)
customer
Summary of Significant Accounting Policies          
Customer invoices payment minimum days     30 days    
Product sales warranty minimum term     1 year    
Accounts receivable, net of allowance for credit losses | $ $ 0   $ 0   $ 0
Research and development | $ $ 1,135,000 $ 1,100,000 $ 2,149,000 $ 2,292,000  
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 722,824 59,125 722,824 59,125  
Number of operating segments | segment     1    
Number of reportable segments | segment     1    
Two supplier | Revenues | Supplier concentration risk          
Summary of Significant Accounting Policies          
Number of supplied contract manufacturer | item 2   2    
One supplier | Revenues | Supplier concentration risk          
Summary of Significant Accounting Policies          
Number of supplied contract manufacturer | item   1   1  
Five Customer | Revenues | Customer concentration risk          
Summary of Significant Accounting Policies          
Number of customers | customer 5        
Concentration percentage 74.00%        
Three customer | Revenues | Customer concentration risk          
Summary of Significant Accounting Policies          
Number of customers | customer     3    
Concentration percentage     60.00%    
Two customer | Revenues | Customer concentration risk          
Summary of Significant Accounting Policies          
Number of customers | customer   2   2  
Concentration percentage   94.00%   88.00%  
Six Customer | Accounts receivable | Credit concentration risk          
Summary of Significant Accounting Policies          
Number of customers | customer     6    
Concentration percentage     82.00%    
One customer | Accounts receivable | Credit concentration risk          
Summary of Significant Accounting Policies          
Number of customers | customer         1
Concentration percentage         99.00%
Machinery, equipment and computer hardware          
Summary of Significant Accounting Policies          
Estimated Useful life 3 years   3 years    
Furniture and fixtures          
Summary of Significant Accounting Policies          
Estimated Useful life 7 years   7 years    
Leasehold improvements          
Summary of Significant Accounting Policies          
Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration] us-gaap:UsefulLifeShorterOfTermOfLeaseOrAssetUtilityMember   us-gaap:UsefulLifeShorterOfTermOfLeaseOrAssetUtilityMember    
Minimum | Computer software          
Summary of Significant Accounting Policies          
Estimated Useful life 1 year   1 year    
Maximum | Computer software          
Summary of Significant Accounting Policies          
Estimated Useful life 2 years   2 years    
Warrants issued to investors          
Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 653,497 47,764 653,497 47,764  
Warrants issued to investors | Expiring on September 10, 2030, with exercise price of 7.79          
Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 633,111   633,111    
Exercise price (in dollars per share) | $ / shares $ 7.79   $ 7.79    
Warrants issued to investors | Expiring on September 10, 2030, with exercise price of 9.90          
Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share, amount (in shares) 20,386   20,386    
Exercise price (in dollars per share) | $ / shares $ 9.9   $ 9.9    
Warrants issued to investors | Expiring at February 20 2029          
Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share, amount (in shares)   34,014   34,014  
Exercise price (in dollars per share) | $ / shares   $ 55.2   $ 55.2  
Warrants issued to investors | Expiring on March 28 2029          
Summary of Significant Accounting Policies          
Antidilutive securities excluded from computation of earnings per share, amount (in shares)   13,750   13,750  
Exercise price (in dollars per share) | $ / shares   $ 8.4   $ 8.4