Note 12 - Financial Instruments and Fair Value Disclosures (Tables)

12 Months Ended

Dec. 31, 2021

Statement Line Items [Line Items]

Disclosure of fair value measurement of assets [text block]

	As at December 31, 2021
	Level 1		Level 2		Level 3		Total
Cash	$	56,748	$	-	$	-	$	56,748
Investments (Note 5)(1)		1,179		-		-		1,179
	$	57,927	$	-	$	-	$	57,927

	As at December 31, 2020
	Level 1		Level 2		Level 3		Total
Cash	$	94,008	$	-	$	-	$	94,008
Investments (Note 5)(1)		11,951		-		-		11,951
	$	105,959	$	-	$	-	$	105,959