Note 4 - Segment Information - Segment Reporting Information (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Revenues	$ (526,162)			$ 5,962,383			$ 5,869,497	$ 12,034,167
Total losses and expenses	428,950			14,240,375			6,573,540	23,324,501
Segment income (loss)	(955,112)	$ (93,078)	$ 344,147	(8,277,992)	$ 1,465,255	$ (4,477,597)	(704,043)	(11,290,334)
Identifiable assets	950,251			1,107,040			950,251	1,107,040	$ 1,098,420
Reinsurance Segment [Member]
Revenues	(1,335,096)			4,524,821			3,212,581	7,487,683
Total losses and expenses	(443,869)			12,872,084			3,814,799	19,062,602
Segment income (loss)	(891,227)			(8,347,263)			(602,218)	(11,574,919)
Identifiable assets	0			0			0	0
Insurance Segment [Member]
Revenues	808,934			1,437,562			2,656,916	4,546,484
Total losses and expenses	872,819			1,368,291			2,758,741	4,261,899
Segment income (loss)	(63,885)			69,271			(101,825)	284,585
Identifiable assets	$ 950,251			$ 1,107,040			$ 950,251	$ 1,107,040