v3.26.1
Summary of Significant Accounting Policies - Narrative (Details)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
segment
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Jul. 01, 2025
Feb. 11, 2025
Dec. 17, 2024
Cash and Cash Equivalents [Line Items]              
Restricted cash, current $ 105,000 $ 100,000 $ 55,000        
Allowance for doubtful accounts 0 0          
Deferred fulfillment and prepaid launch costs 2,200,000   6,300,000        
Recorded revenue 2,700,000 200,000          
Contract with customer, liability 500,000 4,200,000          
Contract liabilities, non-current 120,000 100,000 120,000        
Service revenue 3,215,000 322,000          
Contract with customer, liability     600,000 $ 100,000      
Warrants and rights outstanding, term (in years)         5 years 5 years 5 years
Impairments of long-lived assets 0 0          
Defined contribution plan, cost $ 0 $ 0          
Number of reportable segments | segment 1            
Number of operating segments | segment 1            
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk | Geographic Distribution, Foreign              
Cash and Cash Equivalents [Line Items]              
Percentage of derived from customers 1.00%            
Restricted Stock Units              
Cash and Cash Equivalents [Line Items]              
Expected term 6 months            
ESPP              
Cash and Cash Equivalents [Line Items]              
Offering period 6 months            
Common Class A              
Cash and Cash Equivalents [Line Items]              
Warrants and rights outstanding, term (in years) 5 years            
Common Class B              
Cash and Cash Equivalents [Line Items]              
Warrants and rights outstanding, term (in years) 1 year 6 months            
Patents              
Cash and Cash Equivalents [Line Items]              
Intangible asset useful life 10 years            
Prepaid Expenses and Other Current Assets              
Cash and Cash Equivalents [Line Items]              
Deferred fulfillment and prepaid launch costs $ 1,000,000.0   5,100,000        
Other Noncurrent Assets              
Cash and Cash Equivalents [Line Items]              
Deferred fulfillment and prepaid launch costs $ 1,200,000   $ 1,200,000