Fair value measurement - Additional Information (Details) - USD ($) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Debt Securities, Available-for-Sale [Line Items] | ||
| Cash equivalents | $ 2,700,000 | |
| Marketable securities | $ 1,300,000 | |
| Impairment for Marketable Securities | 0 | 0 |
| Impairment for Accrued Interest Receivable | $ 0 | $ 0 |
| Maximum | ||
| Debt Securities, Available-for-Sale [Line Items] | ||
| Contractual maturities | 11 months | |
| Minimum | ||
| Debt Securities, Available-for-Sale [Line Items] | ||
| Contractual maturities | 5 months |
| X | ||||||||||
- Definition Contractual maturity term of debt securities available for sale. No definition available.
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- Definition Impairment for accrued interest receivable. No definition available.
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- Definition Impairment for Marketable Securities No definition available.
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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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