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Financing transaction (Additional Information) (Details) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 13, 2025 USD ($) $ / shares | Nov. 08, 2023 USD ($) Days Segment $ / shares shares | Nov. 30, 2025 USD ($) $ / shares shares | Dec. 31, 2025 USD ($) Warrants d $ / shares shares | Nov. 06, 2025 | Dec. 31, 2024 $ / shares shares | Mar. 18, 2024 $ / shares | Dec. 31, 2023 $ / shares shares
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Common stock, shares issued | shares |  |  |  | 61,580,000 |  | 54,140,000 |  |
Common stock, shares outstanding | shares |  |  |  | 61,580,000 |  | 54,140,000 |  |
Common Stock, Par or Stated Value Per Share | $ / shares |  |  |  | $ 0.0001 |  | $ 0.0001 | $ 0.0001 |
Trading price of the Common Stock |  | $ 38 |  |  |  |  |  |
Preferred stock, par value | $ / shares |  |  |  | $ 0.0001 |  |  |  |
Fixed Consideration |  |  |  | $ 7,500 |  |  |  |
Program Award 1 | Segment |  | 50,000 |  |  |  |  |  |
Advance condition |  | The Company’s right to request Advances is conditioned upon the Company achieving a minimum of one new passenger auto-original equipment manufacturer (“OEM”) or commercial OEM program award with at least a 50,000 unit volume |  |  |  |  |  |
Gain on Fair Value Instrument |  |  |  | $ 1,700 |  |  |  |
Convertible Senior Notes [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Sale of Stock, Price Per Share | $ / shares |  |  | $ 15.8643 |  |  |  |  |
Convertible Note, Description |  |  |  | The Company may redeem for cash all or any portion of the Convertible Notes, at its option, on or after November 20, 2028, if the last reported sale price of the Company’s common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period ending on, and including, the trading day immediately preceding the date on which the Company provides notice of redemption. The redemption price will be equal to 100% of the principal amount of the notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date. The Company may redeem for cash all of the Notes, at a redemption price equal to the principal amount of the Notes to be redeemed, plus accrued and unpaid interest thereon, if at any time less than 10% of the aggregate principal amount of the Notes initially issued on the date of the Indenture remain outstanding. |  |  |  |
Price per share | $ / shares |  |  | $ 15.8643 |  |  |  |  |
Repurchase price of convertible note |  |  |  | $ 1,000 |  |  |  |
Effective interest rate of the Convertible Notes |  |  | 4.95% |  |  |  |  |
Debt Instrument Convertible Threshold Trading Days | d |  |  |  | 20 |  |  |  |
Convertion of share | shares |  |  | 63.0348 |  |  |  |  |
Debt Conversion, Converted Instrument, Amount |  |  | $ 1,000 | $ 1,000 |  |  |  |
Proceeds from Debt, Net of Issuance Costs |  |  | $ 96,700 |  |  |  |  |
Interest Rate |  |  | 4.375% |  | 4.375% |  |  |
Debt Instrument, Face Amount |  |  | $ 100,000 |  |  |  |  |
Private Placement [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Common stock, shares issued | shares |  |  |  | 3,509,719 |  |  |  |
Purchase price | $ / shares |  |  |  | $ 9.26 |  |  |  |
Gross proceeds from sale of common stock |  |  |  | $ 32,500 |  |  |  |
Subscription Agreements [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Common stock, shares issued | shares |  | 7,360,460 |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share | $ / shares |  | $ 0.0001 |  |  |  |  |  |
Purchase price | $ / shares |  | $ 2.9 |  |  |  |  |  |
Gross proceeds from sale of common stock |  | $ 21,400 |  |  |  |  |  |
LG Subscription Agreement [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Strategic investment | $ 32,500 |  |  |  |  |  |  |
Sale of Stock, Price Per Share | $ / shares | $ 9.26 |  |  |  |  |  |  |
Price per share | $ / shares | $ 9.26 |  |  |  |  |  |  |
Ownership limit percentage | 9.90% |  |  |  |  |  |  |
LG Subscription Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Sale of Stock, Price Per Share | $ / shares | $ 7.41 |  |  |  |  |  |  |
Price per share | $ / shares | $ 7.41 |  |  |  |  |  |  |
Standby Equity Purchase Agreement [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Purchase price | $ / shares |  | $ 10,000 |  |  |  |  |  |
Percentage of Dividend payble per Annum |  | 7.00% |  |  |  |  |  |
Preferred Stock Liquidating Preference | $ / shares |  | $ 12,000 |  |  |  |  |  |
Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value |  | $ 10,000 |  |  |  |  |  |
Common stock applicable conversion price |  | 250.00% |  |  |  |  |  |
Facility Fee |  |  |  | 2,500 |  |  |  |
Administrative fee |  |  |  | 300 |  |  |  |
Origination Fee |  |  |  | 600 |  |  |  |
Reasonable fees and expenses of the investor and its counsel |  |  |  | $ 400 |  |  |  |
Standby Equity Purchase Agreement [Member] | Series A 1 |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Common stock, shares outstanding | shares |  |  |  | 16,428,553 |  |  |  |
Warrants Issued | shares |  |  |  |  |  |  |  | 3,000,000
Standby Equity Purchase Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Debt Instrument Convertible Threshold Trading Days | Days |  | 30 |  |  |  |  |  |
Standby Equity Purchase Agreement [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Debt Instrument Convertible Threshold Trading Days | Days |  | 20 |  |  |  |  |  |
Standby Equity Purchase Agreement [Member] | Preferred Stock |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Total preferred facility |  | $ 125,000 |  |  |  |  |  |
Standby Equity Purchase Agreement [Member] | Preferred Stock | Maximum [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number Of Shares Of Preferred Stock, With An Aggregate Value |  | 50,000 |  |  |  |  |  |
Standby Equity Purchase Agreement [Member] | Preferred Stock | Minimum [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number Of Shares Of Preferred Stock, With An Aggregate Value |  | $ 25,000 |  |  |  |  |  |
Standby Equity Purchase Agreement [Member] | Common Stock warrants |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Percentage of common stock beneficially owned by investor |  | 16428553.00% |  |  |  |  |  |
Standby Equity Purchase Agreement [Member] | Common Stock warrants | Series A 1 |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares |  |  |  |  |  |  |  | $ 5
Number of warrants outstanding | Warrants | Warrants |  |  |  | 3,000,000 |  |  |  |

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