Note 6 - Investments in Juanicipio (Tables)

12 Months Ended

Dec. 31, 2020

Statement Line Items [Line Items]

Disclosure of carrying amount of investments in associates [text block]

		Year Ended December 31,
		2020			2019
Joint venture oversight expenditures incurred 100% by MAG	$	568		$	345
Interest earned on advance to Minera Juanicipio (1)		(567	)		-
Cash contributions to Minera Juanicipio (1)		63,712			53,200
Total for the year		63,713			53,545
Equity pick up of current income for the year (2)		2,214			1,884
Balance, beginning of year		136,643			81,214
Balance, end of year	$	202,570		$	136,643

Disclosure of financial information of investments in associates [text block]

Minera Juanicipio Financial information, December 31, 2020
		Year Ended December 31,
		2020		2019
Cash and cash equivalents	$	51,503	$	29,601
Value added tax and other receivables		26,055		19,163
Accounts receivable - metal sales		5,203		-
Inventory		427		-
Prepaids		-		101
Total current assets		83,188		48,865
Right-of-use asset		18		8
Mineral interests, plant and equipment		381,780		261,023
Total assets	$	464,986	$	309,896
Payables to Peñoles and other vendors	$	5,011	$	5,600
Total current liabilities		5,011		5,600
Lease liability		13		9
Provision for reclamation and remediation costs		1,450		725
Deferred income tax liability		8,406		3,288
Total liabilities		14,880		9,622
Shareholders equity including shareholder advances		450,106		300,274
Total liabilities and equity	$	464,986	$	309,896

Disclosure of associate operations [text block]

		Year ended December 31,
		2020			2019
Sales	$	15,335		$	-
Cost of sales		(3,873	)		-
Gross profit		11,462			-
Operating expenses		(315	)		-
		11,147			-
Interest and foreign exchange		(623	)		946
Income tax (expense) benefit		(5,492	)		3,337
Income for the year	$	5,032		$	4,283
MAG's 44% equity pick up	$	2,214		$	1,884