Marketable securities (Additional Information) (Details) - USD ($) |
3 Months Ended | 12 Months Ended |
|---|---|---|
Mar. 31, 2023 |
Dec. 31, 2022 |
|
| Gain (Loss) on Securities [Line Items] | ||
| Unrealized gain | $ 165,822 | $ 104,718 |
| Marketable securities, Unrealized Loss | 0 | 0 |
| Proceeds from Sale and Maturity of Marketable Securities | 15,700,000 | 4,960,000 |
| Marketable Securities, Realized Gain (Loss) | 0 | 0 |
| U.S. treasury debt securities | ||
| Gain (Loss) on Securities [Line Items] | ||
| Unrealized gain | 165,822 | 104,718 |
| Marketable securities, Unrealized Loss | $ 0 | $ 0 |
| X | ||||||||||
- 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). No definition available.
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| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in net income (trading). No definition available.
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| X | ||||||||||
- Definition Amount of realized gain (loss) on investment in marketable security, including other-than-temporary impairment (OTTI). 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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- 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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- Details
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