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

12 Months Ended

Dec. 31, 2020

Statement Line Items [Line Items]

Disclosure of fair value measurement of assets [text block]

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

	As at December 31, 2019
	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	72,360	$	-	$	-	$	72,360
Investments (Note 5) (1)		1,408		-		-		1,408
	$	73,768	$	-	$	-	$	73,768