Note 18 - Segmented Information - Reconciliation of Operating Profit (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Total segment operating income		$ 2,377	$ 778	$ 3,176	$ 1,600
Net investment income		465	403	1,084	824
Net realized gains		184	187	238	238
Loss on change in fair value of equity investments		(38)	(45)	(48)	(196)
Gain on change in fair value of limited liability investments, at fair value		46	731	173	529
Non-operating other expenses		(877)	(2,741)	(653)	(2,634)
Amortization of intangible assets		(1,494)	(496)	(2,988)	(993)
Loss on change in fair value of debt		(1,330)	(738)	(3,198)	(1,757)
Gain on extinguishment of debt		0	0	0	2,494
Loss before income tax benefit		(2,371)	(3,514)	(5,284)	(3,040)
Income tax benefit		(6)	(3,258)	(415)	(3,683)
Net (loss) income		(2,365)	(256)	(4,869)	643
Operating Segments [Member]
Total segment operating income		4,680	298	8,768	6,901
Operating Segments [Member] | Extended Warranty Segment [Member]
Total segment operating income	[1]	2,936	2,600	4,659	7,910
Gain on extinguishment of debt				2,200
Operating Segments [Member] | Leased Real Estate Segment [Member]
Total segment operating income	[2]	851	(2,302)	2,410	(1,009)
Operating Segments [Member] | Kingsway Search Xcelerator [Member]
Total segment operating income		893	0	1,699	0
Corporate, Non-Segment [Member]
Interest expense not allocated to segments		(1,704)	(1,593)	(3,068)	(3,145)
Non-operating other expenses		(3,180)	(2,261)	(6,245)	(5,752)
Gain on extinguishment of debt		$ 0	$ 0	$ 0	$ 311

[1] For the six months ended June 30, 2022, Extended Warranty segment operating income includes gain on extinguishment of debt of $2.2 million, related to PPP loan forgiveness directly associated with the respective warranty businesses. Extended Warranty segment operating income before the gain on extinguishment of debt totaled $5.7 million for the six months ended June 30, 2021. See Note 10, "Debt," for further discussion.

[2] For the three and six months ended June 30, 2021, includes $2.9 million expense due to the release of an indemnification receivable, which is exactly offset in net (loss) income 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.