Debt - Narrative (Details) $ in Thousands				1 Months Ended				6 Months Ended
	May 08, 2026 shares	Sep. 24, 2025 shares	Sep. 23, 2025 USD ($)	Apr. 30, 2026 USD ($) vehicle	Dec. 31, 2025 USD ($) shares	Apr. 30, 2025	Jul. 31, 2022 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of second lien loans								$ 0	$ 29,740
Second lien loan					$ 10,872			12,025
New shares issued during period (in shares) | shares	15,384,609
Number of vehicles sold | vehicle				7
Proceeds from sales of property and equipment				$ 700				684	$ 0
Redeemable convertible preferred stock warrants
Debt Instrument [Line Items]
New shares issued during period (in shares) | shares		614,799
Second Lien Loans from Exchange of SAFE
Debt Instrument [Line Items]
Second lien loan								$ 12,000
Second Lien Loans from Exchange of SAFE | Convertible Debt | Affiliated Entity
Debt Instrument [Line Items]
Proceeds from issuance of second lien loans			$ 10,000
Second Lien Loans | Convertible Debt
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate						9.00%
Debt instrument, effective interest rate								16.50%
Second Lien Loans | Convertible Debt | Minimum
Debt Instrument [Line Items]
Debt instrument, stated interest rate						13.75%
2025 Credit Facility | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate					6.50%
Debt instrument, stated interest rate					3.50%
Debt instrument, effective interest rate					10.25%
Line of credit facility, maximum borrowing capacity					$ 30,000
Long-term line of credit					15,000
Repayments of debt					1,200
Final payment fee due					1,200
Total debt issuance costs					800
Commitment fee amount					300
2025 Credit Facility | Line of Credit | Redeemable convertible preferred stock warrants
Debt Instrument [Line Items]
Total debt issuance costs					$ 500
New shares issued during period (in shares) | shares					45,906
2025 Credit Facility | Line of Credit | Minimum
Debt Instrument [Line Items]
Prepayment fee percentage					1.00%
2025 Credit Facility | Line of Credit | Maximum
Debt Instrument [Line Items]
Prepayment fee percentage					2.00%
2022 Credit Facility | Line of Credit
Debt Instrument [Line Items]
Total debt issuance costs					$ 100
2022 Equipment Facility | Line of Credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate							3.38%
Line of credit facility, maximum borrowing capacity							$ 10,000
Long-term line of credit					$ 1,900			$ 900
Total debt issuance costs								$ 100
Proceeds from long term line of credit							$ 8,500
Direct payoff to satisfy lien on vehicles				500
Extinguishment of debt				$ 500
2022 Equipment Facility | Line of Credit | Minimum
Debt Instrument [Line Items]
Debt instrument, stated interest rate							6.00%
2022 Equipment Facility | Line of Credit | Maximum
Debt Instrument [Line Items]
Debt instrument, stated interest rate							7.00%