Note 15 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2018

Statement Line Items [Line Items]

Description of income taxes recognized in profit or loss [text block]

		December 31, 2018			December 31, 2017
Deferred tax expense		(796	)		(728	)
Total income tax expense	$	(796	)	$	(728	)

Disclosure of income tax expense recovery differences explanatory [text block]

		December 31,  2018			December 31, 2017
Loss for the year before income taxes	$	(5,006	)	$	(5,769	)
Statutory tax rate		27	%		26	%
Recovery of income taxes computed at statutory rates		1,352			1,500
Share based payments		(569	)		(588	)
Mexican inflationary adjustments		(1,002	)		(80	)
Differing effective tax rate on loss in foreign jurisdiction		63			93
Impact of change in statutory tax rates		–			444
Unrecognized deferred tax assets		1,516			(4,671	)
Impact of foreign exchange and other		(2,156	)		2,574
Total income tax expense	$	(796	)	$	(728	)

Disclosure of temporary difference, unused tax losses and unused tax credits [text block]

		December 31, 2018			December 31, 2017
Deferred income tax assets
Exploration and evaluation assets	$	1,031		$	1,303
Non-capital losses		1,761			872
Capital losses		551			–
Other		4			35
	$	3,347		$	2,210
Deferred income tax liablities
Exploration and evaluation assets	$	(27	)	$	–
Investment in associate		(3,493	)		(3,429	)
Unrealized capital gain on foreign exchange		(1,940	)		–
Other		–			(98	)
	$	(5,460	)	$	(3,527	)
Net deferred income tax liability	$	(2,113	)	$	(1,317	)

Disclosure of deferred taxes [text block]

		December 31,  2018			December 31, 2017
At January 1	$	(1,317	)	$	(589	)
Deferred income tax (expense) recovery through income statement		(796	)		(728	)
At December 31	$	(2,113	)	$	(1,317	)

Disclosure of deductible temporary differences and unused tax credits for which no deferred tax assets explanatory [text block]

		December 31,  2018	expiry dates		December 31, 2017
Non-capital losses	$	70,659	2020-2038	$	69,925
Exploration and evaluation assets		17,261	no expiry		21,103
Financing fees		1,737	2039 - 2041		3,657
Other		3,135	no expiry		2,977
Total	$	92,792		$	97,662