Note 17 - Segmented Information - Reconciliation of Operating Profit (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Total segment operating income		$ 799	$ 822
Net investment income		619	421
Net realized gains		54	51
Loss on change in fair value of equity investments		(10)	(151)
Gain (loss) on change in fair value of limited liability investments, at fair value		127	(202)
Non-operating other revenue		224	107
Amortization of intangible assets		(1,494)	(497)
Loss on change in fair value of debt		(1,868)	(1,019)
Gain on extinguishment of debt		0	2,494
(Loss) income before income tax benefit		(2,913)	474
Income tax benefit		(409)	(425)
Net (loss) income		(2,504)	899
Operating Segments [Member]
Total segment operating income		4,088	6,603
Operating Segments [Member] | Extended Warranty Segment [Member]
Total segment operating income	[1]	1,723	5,310
Gain on extinguishment of debt			2,200
Operating Segments [Member] | Leased Real Estate Segment [Member]
Total segment operating income	[2]	1,559	1,293
Operating Segments [Member] | Kingsway Search Xcelerator [Member]
Total segment operating income		806	0
Corporate, Non-Segment [Member]
Interest expense not allocated to segments		(1,364)	(1,552)
Non-operating other revenue		(3,065)	(3,491)
Gain on extinguishment of debt		$ 0	$ 311

[1] For the years ended December 31, 2021 and December 31, 2020, Extended Warranty segment operating income includes gain on extinguishment of debt of $2.2 million and $0.4 million, respectively, related to PPP loan forgiveness directly associated with the respective warranty businesses. The gain of $0.4 million for the year ended December 31, 2020 was reclassified to segment operating income from gain (loss) on extinguishment of debt not allocated to segments to be consistent with current year presentation. Extended Warranty segment operating income before the gain on extinguishment of debt totaled $10.5 million and $6.2 million for the years ended December 31, 2021 and December 31, 2020, respectively. See Note 12, "Debt," for further discussion.

[2] For the nine months ended September 30, 2021, includes $2.9 million expense due to the release of an indemnification receivable, which is exactly offset in net income (loss) (not shown here) by an income tax benefit of $2.9 million for the release of a liability that had been included in income taxes payable in the consolidated balance sheets.