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Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit) - Narrative (Details) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
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Feb. 09, 2026 shares | Jun. 30, 2025 USD ($) $ / shares shares | May 31, 2025 USD ($) $ / shares | Mar. 31, 2025 USD ($) shares | Jul. 31, 2023 USD ($) tranches $ / shares | May 31, 2019 USD ($) $ / shares shares | Mar. 31, 2026 USD ($) $ / shares shares | Mar. 31, 2025 USD ($) shares | Dec. 31, 2025 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) $ / shares | Dec. 31, 2024 shares
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares authorized (in shares) |  |  |  |  |  |  | 0 |  | 116,618,581 |  |
Redeemable convertible preferred stock, shares issued (in shares) |  |  |  |  |  |  | 0 |  | 20,341,968 |  |
Redeemable convertible preferred stock, shares outstanding (in shares) |  |  |  | 14,542,503 |  |  | 0 | 14,542,503 | 20,341,968 |  | 9,608,914
Common stock, shares authorized (in shares) |  |  |  |  |  |  | 1,000,000,000 |  | 154,383,336 |  |
Common stock, par value per share (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.00001 |  | $ 0.00001 |  |
Common stock, shares issued (in shares) |  |  |  |  |  |  | 33,432,555 |  | 2,203,620 |  |
Common stock, shares outstanding (in shares) |  |  |  |  |  |  | 33,432,555 |  | 2,203,620 |  |
Company repurchased shares (in shares) |  | 174,432 |  |  |  |  |  |  |  |  |
Common stock at per share (in dollars per share) | $ / shares |  | $ 8.31 |  |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, par value per share (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 0.00001 |  | $ 0.00001 |  |
Issuance of redeemable convertible preferred stock (in shares) |  |  |  |  |  |  |  | 4,933,589 |  |  |
Issuance of Series C-2 redeemable convertible preferred stock, net of issuance costs and tranche liability | $ |  |  |  |  |  |  |  | $ 54,939,000 |  |  |
Payments of temporary equity issuance costs | $ |  |  |  |  |  |  | $ 0 | $ 14,000 |  |  |
Conversion of redeemable convertible preferred stock into common stock on the initial public offering (in shares) | 20,341,968 |  |  |  |  |  | 20,341,968 |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Outstanding shares of preferred stock were converted into common stock (in shares) | 20,341,968 |  |  |  |  |  |  |  |  |  |
Series A preferred stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares authorized (in shares) |  |  |  |  |  |  |  |  | 5,483,956 |  |
Redeemable convertible preferred stock, shares issued (in shares) |  |  |  |  |  |  |  |  | 956,575 |  |
Redeemable convertible preferred stock, shares outstanding (in shares) |  |  |  |  |  |  |  |  | 956,575 |  |
Redeemable convertible preferred stock, par value per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 0.00001 |  |
Issuance of redeemable convertible preferred stock (in shares) |  |  |  |  |  | 956,575 |  |  |  |  |
Purchase price (in dollars per share) | $ / shares |  |  |  |  |  | $ 6.31 |  |  |  |  |
Issuance of Series C-2 redeemable convertible preferred stock, net of issuance costs and tranche liability | $ |  |  |  |  |  | $ 6,000,000.0 |  |  |  |  |
Payments of temporary equity issuance costs | $ |  |  |  |  |  | $ 100,000 |  |  |  |  |
Series B preferred stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares authorized (in shares) |  |  |  |  |  |  |  |  | 21,317,825 |  |
Redeemable convertible preferred stock, shares issued (in shares) |  |  |  |  |  |  |  |  | 3,718,503 |  |
Redeemable convertible preferred stock, shares outstanding (in shares) |  |  |  |  |  |  |  |  | 3,718,503 |  |
Redeemable convertible preferred stock, par value per share (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  | $ 0.00001 |  |
Purchase price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 7.40 |
Issuance of Series C-2 redeemable convertible preferred stock, net of issuance costs and tranche liability | $ |  |  |  |  |  |  |  |  |  | $ 27,500,000 |
Payments of temporary equity issuance costs | $ |  |  |  |  |  |  |  |  |  | 200,000 |
Redeemable Convertible Series C Preferred Stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Payments of temporary equity issuance costs | $ |  |  |  |  |  |  |  |  | $ 20,772 | $ 300,000 |
Number of tranches | tranches |  |  |  |  | 2 |  |  |  |  |  |
Series C-1 preferred stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares issued (in shares) |  |  |  |  |  |  |  |  | 4,933,836 |  |
Redeemable convertible preferred stock, shares outstanding (in shares) |  |  |  |  |  |  |  |  | 4,933,836 |  |
Purchase price (in dollars per share) | $ / shares |  |  |  |  | $ 8.11 |  |  |  |  |  |
Issuance of Series C-2 redeemable convertible preferred stock, net of issuance costs and tranche liability | $ |  |  |  |  | $ 40,000,000.0 |  |  |  |  |  |
Series C-2 preferred stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares issued (in shares) |  |  |  |  |  |  |  |  | 4,933,589 |  |
Redeemable convertible preferred stock, shares outstanding (in shares) |  |  |  |  |  |  |  |  | 4,933,589 |  |
Issuance of redeemable convertible preferred stock (in shares) |  |  |  | 4,933,589 |  |  |  |  |  |  |
Purchase price (in dollars per share) | $ / shares |  |  |  |  | $ 10.14 |  |  |  |  |  |
Issuance of Series C-2 redeemable convertible preferred stock, net of issuance costs and tranche liability | $ |  |  |  | $ 50,000,000.0 |  |  |  |  |  |  |
Payments of temporary equity issuance costs | $ |  |  |  |  |  |  |  |  | $ 300,000 |  |
Series D preferred stock |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares issued (in shares) |  |  |  |  |  |  |  |  | 5,799,465 |  |
Redeemable convertible preferred stock, shares outstanding (in shares) |  |  |  |  |  |  |  |  | 5,799,465 |  |
Purchase price (in dollars per share) | $ / shares |  |  | $ 13.34 |  |  |  |  |  |  |  |
Issuance of Series C-2 redeemable convertible preferred stock, net of issuance costs and tranche liability | $ |  | $ 2,300,000 | $ 75,000,000.0 |  |  |  |  |  |  |  |
Payments of temporary equity issuance costs | $ |  | $ 5,254 | $ 300,000 |  |  |  |  |  | $ 300,000 |  |

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- Definition The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479857/480-10-S50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479857/480-10-S50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479857/480-10-S50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition Value of new stock classified as temporary equity issued during the period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479857/480-10-S50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479887/480-10-S45-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 480 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480244/480-10-S99-1 + Details
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