Note 14 - Income Taxes (Tables)

12 Months Ended

Nov. 30, 2020

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Years ended November 30,
	2020			2019		2018
Current:
Canada	$	—		$	—	$	—
Foreign		(30	)		607		446
		(30	)		607		446
Deferred:
Canada		—			—		—
Foreign		(751	)		671		80
		(751	)		671		80
Income tax (recovery) expense	$	(781	)	$	1,278	$	526

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Years ended November 30,
	2020			2019			2018
Canada	$	(16,447	)	$	(12,584	)	$	(15,018	)
Foreign		(17,898	)		(13,899	)		(15,922	)
	$	(34,345	)	$	(26,483	)	$	(30,940	)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Years ended November 30,
	2020			2019			2018
Loss before income taxes and other items	$	(34,345	)	$	(26,483	)	$	(30,940	)
Combined federal and provincial statutory tax rate		27	%		27	%		26.92	%
Income tax recovery based on statutory income tax rates		(9,273	)		(7,150	)		(8,329	)
Reconciling items:
Non-deductible expenditures		1,911			2,136			2,150
Foreign accrual property income (FAPI)		652			180			580
Effect of consolidated return for U.S. subsidiaries		(751	)		—			—
Effect of different statutory tax rates on earnings or losses of subsidiaries		(2	)		(658	)		(574	)
Effect of statutory tax rate change		—			—			73,135
Change in valuation allowance on deferred tax assets		6,638			6,773			(66,466	)
Other		44			(3	)		30
Income tax (recovery) expense	$	(781	)	$	1,278		$	526
Effective tax rate		2.3	%		(4.8	)%		(1.7	)%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	As of November 30,
	2020			2019
Deferred tax income assets:
Net operating loss carry forwards	$	183,422		$	175,383
Capital loss carry forwards		49,307			47,953
Mineral properties		654			638
Intangible assets		484			473
Property and equipment		203			194
Investment in affiliates		35,933			33,508
Unpaid interest expense		2,105			2,105
Unrealized loss on investments		316			368
Other		685			569
		273,109			261,191
Valuation allowances		(271,016	)		(260,920	)
		2,093			271
Deferred income tax liabilities:
Investment tax credit		—			(8	)
Notes receivable		(1,975	)		(759	)
Capitalized assets and other		(118	)		(255	)
		(2,093	)		(1,022	)
Net deferred income tax assets (liabilities)	$	—		$	(751	)

	As of November 30,
	2020		2019
Non-current deferred income tax assets	$	—	$	—
Non-current deferred income tax liabilities		—		(751	)
	$	—	$	(751	)

Summary of Operating Loss Carryforwards [Table Text Block]

Year of Expiry	U.S.		Canada
2024	$	1,032	$	—
2025		1,246		—
2026		13,382		19,166
2027		18,493		1,861
2028		85		—
2029		11,223		12,062
2030		10,916		16,051
2031		16,580		15,975
2032		309,772		19,496
2033		14,529		14,712
2034		15,607		10,585
2035		16,383		9,666
2036		14,764		9,512
2037		14,111		6,329
2038		—		6,433
2039		—		5,843
2040		—		7,365
Indefinite		39,448		—
	$	497,571	$	155,056