Quarterly report [Sections 13 or 15(d)]

Description of the Business and Financial Condition - Additional Information (Details)

v3.26.3
Description of the Business and Financial Condition - Additional Information (Details)
$ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Nov. 20, 2025
USD ($)
May 12, 2025
USD ($)
May 31, 2025
USD ($)
Nov. 30, 2024
USD ($)
Sep. 30, 2026
USD ($)
Customer
shares
Sep. 30, 2026
USD ($)
Customer
shares
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                
Number of customers | Customer         60 60    
Cumulative deficit         $ 245,259 $ 245,259   $ 216,910
Net cash used in operations         20,100 20,094 $ 11,845 $ 23,900
Net proceeds from offering           0 3,263  
Net proceeds from issuance of debt           0 28,653  
The ATM equity offering program for net proceeds         22,000 22,020 $ 0  
At-the-market equity offering program, net of issuance costs           500    
Common stock remained unsold and available for sale under ATM Agreement         $ 27,500 $ 27,500    
At-The-Market Equity Offering                
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                
Sale of stock maximum proceeds on potential common stock offering       $ 50,000        
ATM Agreement shares sold | shares         1,530,000 1,530,000    
At-the-market equity offering program, net of issuance costs         $ 500 $ 500    
2025 Stock Purchase Agreement | 2025 Investor                
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                
Net proceeds from offering     $ 3,300          
2025 Note Purchase Agreement | 2025 Investor                
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                
Aggregate principal amount   $ 105,000 $ 105,000          
Net proceeds from issuance of debt $ 19,400 $ 28,700       $ 48,100    
Interest rate, payable in cash percentage         50.00% 50.00%    
Interest rate, payable in paid-in-kind percentage         50.00% 50.00%