Note 4 - Fair Value of Assets and Liabilities (Details Textual) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Goodwill, Impairment Loss	$ 0	$ 0	$ 0	$ 0
Impairment of Real Estate	0	0	0	0
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total	50,000		50,000		$ 50,000
Triad Guaranty, Inc. [Member]
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount					45,410
Impairment Loss, Note Receivable					144,105
Impairment Loss, Equity Securities and Note Receivable					189,515
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total	50,000		50,000		$ 50,000
Mt. Melrose LLC [Member]
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount			0
Real Estate, Held For Sale [Member]
Impairment of Real Estate	$ 0	$ 0	$ 0	$ 0