Financial Instruments - Fair Value and Net Unrealized Gains (Losses) By Investment in OCI (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Investment Owned, at Fair Value	$ 67,457,920	$ 70,003,787
Unrealized Gain (Loss) on Investments	(654,615)	(780,795)
Marketable Securities [Line Items]
Investment Owned, at Fair Value	67,457,920	70,003,787
Unrealized Gain (Loss) on Investments	(654,615)	(780,795)
Cash and Cash Equivalents
Investments, Debt and Equity Securities [Abstract]
Investment Owned, at Fair Value	26,156,210	24,600,960
Unrealized Gain (Loss) on Investments	(2,532)	(2,131)
Marketable Securities [Line Items]
Investment Owned, at Fair Value	26,156,210	24,600,960
Unrealized Gain (Loss) on Investments	(2,532)	(2,131)
US Treasury Securities
Investments, Debt and Equity Securities [Abstract]
Investment Owned, at Fair Value	11,897,342	11,765,597
Unrealized Gain (Loss) on Investments	(147,577)	(206,439)
Marketable Securities [Line Items]
Investment Owned, at Fair Value	11,897,342	11,765,597
Unrealized Gain (Loss) on Investments	(147,577)	(206,439)
Corporate Debt Securities
Investments, Debt and Equity Securities [Abstract]
Investment Owned, at Fair Value	20,325,750	21,618,613
Unrealized Gain (Loss) on Investments	(390,665)	(417,649)
Marketable Securities [Line Items]
Investment Owned, at Fair Value	20,325,750	21,618,613
Unrealized Gain (Loss) on Investments	(390,665)	(417,649)
Asset-backed Securities
Investments, Debt and Equity Securities [Abstract]
Investment Owned, at Fair Value	9,078,618	12,018,617
Unrealized Gain (Loss) on Investments	(113,841)	(154,576)
Marketable Securities [Line Items]
Investment Owned, at Fair Value	9,078,618	12,018,617
Unrealized Gain (Loss) on Investments	$ (113,841)	$ (154,576)