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Summary of Significant Accounting Policies - Narrative (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 12, 2021
USD ($)
Jun. 30, 2024
USD ($)
$ / shares
shares
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Jun. 30, 2024
USD ($)
segment
$ / shares
shares
Jun. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
Mar. 04, 2024
Jan. 12, 2024
$ / shares
Cash and Cash Equivalents [Line Items]                  
Restricted cash, non-current   $ 380,000     $ 380,000   $ 373,000    
Deferred fulfillment and prepaid launch costs   400,000     400,000   1,700,000    
Contract with customer, cumulative catch-up to revenue   1,200,000 $ 0   1,700,000 $ 0      
Contract with customer, liability   1,100,000     1,100,000   1,000,000.0    
Contract liabilities, non-current   618,000     618,000   998,000    
Service revenue   $ 1,209,000 $ 1,705,000   $ 1,722,000 1,727,000      
Contract with customer, liability             35,000    
Warrants and rights outstanding, term (in years)   5 years     5 years     5 years 5 years
Payment of liability       $ 10,000,000          
Exercise price (in dollars per share) | $ / shares                 $ 0.96
Estimated fair value of warrants   $ 3,000     $ 3,000   3,000    
Impairments of long-lived assets         0 $ 0      
Defined contribution plan, cost         $ 0        
Number of reportable segments | segment         1        
Number of operating segments | segment         1        
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk | Geographic Distribution, Domestic                  
Cash and Cash Equivalents [Line Items]                  
Percentage of derived from customers         98.00%        
Revenue from Contract with Customer Benchmark | Geographic Concentration Risk | Geographic Distribution, Foreign                  
Cash and Cash Equivalents [Line Items]                  
Percentage of derived from customers         2.00%        
Common Class A                  
Cash and Cash Equivalents [Line Items]                  
Exchange ratio   1     1        
Exercise price (in dollars per share) | $ / shares   $ 575.00     $ 575.00        
Expiration period         5 years        
ESPP                  
Cash and Cash Equivalents [Line Items]                  
Offering period         6 months        
Restricted Stock Units                  
Cash and Cash Equivalents [Line Items]                  
Expected term         6 months        
Private Placement Warrant                  
Cash and Cash Equivalents [Line Items]                  
Number of warrants outstanding (in shares) | shares   225,450     225,450        
Estimated fair value of warrants $ 31,200,000                
Public Warrant                  
Cash and Cash Equivalents [Line Items]                  
Number of warrants outstanding (in shares) | shares   172,500     172,500        
Equity related to warrants $ 20,200,000                
Prepaid Expenses and Other Current Assets                  
Cash and Cash Equivalents [Line Items]                  
Deferred fulfillment and prepaid launch costs   $ 0     $ 0   1,300,000    
Other Noncurrent Assets                  
Cash and Cash Equivalents [Line Items]                  
Deferred fulfillment and prepaid launch costs   $ 400,000     $ 400,000   $ 400,000    
Patents                  
Cash and Cash Equivalents [Line Items]                  
Intangible asset useful life   10 years     10 years        
Cash Designated for Collateral                  
Cash and Cash Equivalents [Line Items]                  
Restricted cash, non-current   $ 400,000     $ 400,000