Note 15 - Segment Information - Schedule of Segment Information (Details) - USD ($)		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Advisory services, external customers		$ 12,995,504	$ 9,788,340
Advisory services, other operating segments(1)	[1]	0	0
Interest and dividend income		3,155,000	4,262,000
Interest expense		(2,131,000)	(1,113,000)
Net revenues		14,019,675	12,936,963
Other (expense) income		(12,146,005)	(4,744,032)
Operating expenses(4)	[2]	(9,838,706)	(8,285,362)
Intercompany expenses(1)	[1]	0	0
Income (loss) before income taxes		(7,965,036)	(92,431)
Year end assets		86,316,951	122,084,641
Corporate, Non-Segment [Member]
Advisory services, external customers		0	0
Advisory services, other operating segments(1)	[1]	0	0
Interest and dividend income		0	0
Interest expense	[3]	(1,416,000)	(997,000)
Net revenues		(1,416,000)	(997,000)
Other (expense) income	[4]	66,000	154,000
Operating expenses(4)	[2]	0	0
Intercompany expenses(1)	[1]	0	0
Income (loss) before income taxes		(1,350,000)	(843,000)
Year end assets		6,864,000	9,162,000
Consolidation, Eliminations [Member]
Advisory services, external customers		0	0
Advisory services, other operating segments(1)	[1]	(115,000)	(147,000)
Interest and dividend income		0	0
Interest expense		0	0
Net revenues		(115,000)	(147,000)
Other (expense) income		0	0
Operating expenses(4)	[2]	0	0
Intercompany expenses(1)	[1]	115,000	147,000
Income (loss) before income taxes		0	0
Year end assets		0	0
Asset Management [Member] | Operating Segments [Member]
Advisory services, external customers		12,996,000	9,788,000
Advisory services, other operating segments(1)	[1]	115,000	147,000
Interest and dividend income		0	0
Interest expense		0	0
Net revenues		13,111,000	9,935,000
Other (expense) income		0	0
Operating expenses(4)	[2]	(7,805,000)	(5,676,000)
Intercompany expenses(1)	[1]	0	0
Income (loss) before income taxes		5,306,000	4,259,000
Year end assets		1,970,000	1,901,000
Investment Portfolio [Member] | Operating Segments [Member]
Advisory services, external customers		0	0
Advisory services, other operating segments(1)	[1]	0	0
Interest and dividend income		3,155,000	4,262,000
Interest expense		(715,000)	(116,000)
Net revenues		2,440,000	4,146,000
Other (expense) income		(12,212,000)	(4,898,000)
Operating expenses(4)	[2]	(2,034,000)	(2,609,000)
Intercompany expenses(1)	[1]	(115,000)	(147,000)
Income (loss) before income taxes		(11,921,000)	(3,508,000)
Year end assets		$ 77,483,000	$ 111,022,000

[1] Includes advisory services revenue received by Bimini Advisors from Royal Palm.

[2] Corporate expenses are allocated based on each segment’s proportional share of total revenues.

[3] Includes interest on long-term debt.

[4] Includes income recognized on the forgiveness of the PPP loan and gains (losses) on Eurodollar futures contracts entered into as a hedge on junior subordinated notes.