Cash, cash equivalents, and marketable securities (Details 4) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Cash and Cash Equivalents [Abstract]
One year or less	$ 38,968,404
Two years to three years	2,318,822
Total minimum payments	$ 41,287,226	$ 59,050,361

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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+ Details