Marketable securities Additional Information (Details) - USD ($) |
9 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2025 |
Dec. 31, 2024 |
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| Marketable securities, available-for-sale: | ||
| Marketable securities, Net Unrealized Loss | $ 5,092 | $ 37,248 |
| Proceeds from maturities of marketable securities | 41,600,000 | 23,500,000 |
| Marketable Securities, Realized Gain (Losses) | 0 | 0 |
| U.S. treasury debt securities | ||
| Marketable securities, available-for-sale: | ||
| Marketable securities, Net Unrealized Loss | 5,092 | $ 37,248 |
| Marketable securities, Unrealized Loss | $ 5,092 | |
| Marketable securities, obligations maturity period | less than one year | less than one year |
| Seven U S Treasury Debt Securities | ||
| Marketable securities, available-for-sale: | ||
| Marketable securities, Net Unrealized Loss | $ 37,248 | |
| One U S Treasury Debt Securities | ||
| Marketable securities, available-for-sale: | ||
| Marketable securities, Net Unrealized Loss | $ 4,189 | |
| Marketable securities, Unrealized Gain | $ 903 |
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- Definition Marketable Securities, Obligations Maturity Period No definition available.
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- Definition Marketable Securities, Realized Gain (Losses) No definition available.
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- Definition Amount of unrealized gain on 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 Amount of unrealized loss on 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 Amount of unrealized gain (loss) on 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 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. No definition available.
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- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. No definition available.
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