Document and Entity Information Document - shares	9 Months Ended
	Sep. 30, 2018	Feb. 27, 2020
Document Information [Line Items]
Entity Registrant Name	KINGSWAY FINANCIAL SERVICES INC.
Entity Central Index Key	0001072627
Current Fiscal Year End Date	--09-30
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q/A
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Amendment Flag	false
Entity Common Stock, Shares Outstanding		22,843,909