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Marketable securities (Details) - USD ($) | Mar. 31, 2024 | Dec. 31, 2023
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Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |
Total Marketable Securities Amortized Cost | $ 1,002,050 | $ 4,473,033
Total Marketable Securities Gross Unrealized Gains | 12,697 | 50,878
Total Marketable Securities Gross Unrealized Losses | (32,143) | (60,969)
Total Marketable Securities Fair Value | 982,604 | 4,462,942
Corporate Debt Securities [Member] |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |
Total Marketable Securities Amortized Cost | 1,002,050 | 4,473,033
Total Marketable Securities Gross Unrealized Gains | 12,697 | 50,878
Total Marketable Securities Gross Unrealized Losses | (32,143) | (60,969)
Total Marketable Securities Fair Value | $ 982,604 | $ 4,462,942

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