Allowance for Credit Losses - Summary of Partnerships Carrying Value by Origination Year Grouped by Risk Rating (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
2025		$ 7,250,000
2024	$ 7,250,000	21,430,000
2023	12,688,246	194,126,911
2022	193,570,911	115,322,594
2021	34,620,000
Prior	495,000	495,000
Total	248,624,157	338,624,505
Governmental Issuer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024		13,600,000
2023	12,100,000	90,779,628
2022	108,188,328	115,322,594
2021	34,620,000
Total	154,908,328	219,702,222
Governmental Issuer Loans [Member] | Performing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2024		13,600,000
2023	12,100,000	90,779,628
2022	108,188,328	115,322,594
2021	34,620,000
Total	154,908,328	219,702,222
Taxable Governmental Issuer Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023		13,157,672
2022	22,157,672
Total	22,157,672	13,157,672
Taxable Governmental Issuer Loans [Member] | Performing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023		13,157,672
2022	22,157,672
Total	22,157,672	13,157,672
Property Loans [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2025		7,250,000
2024	7,250,000	7,830,000
2023	588,246	40,489,611
2022	39,933,611
Prior	495,000	495,000
Total	48,266,857	56,064,611
Property Loans [Member] | Performing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2025		7,250,000
2024	7,250,000	7,830,000
2023	588,246	40,489,611
2022	39,933,611
Total	47,771,857	55,569,611
Property Loans [Member] | Nonperforming [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Prior	495,000	495,000
Total	495,000	495,000
Unfunded Commitments [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023		49,700,000
2022	23,291,300
Total	23,291,300	49,700,000
Unfunded Commitments [Member] | Performing [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
2023		49,700,000
2022	23,291,300
Total	$ 23,291,300	$ 49,700,000