v3.25.3
Summary of Business and Significant Accounting Policies (Details) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Dec. 31, 2024
Aug. 22, 2025
Significant Accounting Policies [Line Items]          
Common stock par value       $ 0.0001  
Exercise price of warrant after reverse stock split         $ 87.82
Cash, cash equalents, restricted cash, and short-term investments $ 31,800   $ 31,800 $ 35,300  
Working capital deficit 31,300   31,300    
Accumulated deficit (849,275)   (849,275) (806,899)  
Net losses excluding effect of gain on sale of businesses $ 59,000 $ 48,700      
Increase in cash used in operations     $ 35,000    
Percentage of cash and cash equivalents held 75.00%   75.00%    
Allowance for credit losses $ 1,635   $ 1,635 $ 1,343  
Common Class A          
Significant Accounting Policies [Line Items]          
Common stock par value $ 0.0001   $ 0.0001 $ 0.0001  
Number of shares issuable per warrant prior to reverse stock split         1.571428
Number of shares issuable per warrant after reverse stock split 0.130952   0.130952   0.130952
Exercise price of warrant after reverse stock split $ 87.82   $ 87.82    
Common Class B          
Significant Accounting Policies [Line Items]          
Common stock par value $ 0.0001   $ 0.0001 $ 0.0001  
Accounts Receivable | Customer Concentration Risk | Customer One          
Significant Accounting Policies [Line Items]          
Concentration risk, percentage 10.00%     10.00%  
Revenue | Customer Concentration Risk | U.S. Federal Government          
Significant Accounting Policies [Line Items]          
Concentration risk, percentage 17.00% 17.00%      
Assets | Geographic Concentration Risk | Single Customer | United States          
Significant Accounting Policies [Line Items]          
Concentration risk, percentage 99.00%     85.00%  
Accounts Payable | Supplier Concentration Risk | No Vendors          
Significant Accounting Policies [Line Items]          
Concentration risk, percentage 10.00%     10.00%  
Purchases | Supplier Concentration Risk | One Vendor          
Significant Accounting Policies [Line Items]          
Concentration risk, percentage 10.00%        
Purchases | Supplier Concentration Risk | No Vendors          
Significant Accounting Policies [Line Items]          
Concentration risk, percentage   10.00%