Exploration and Evaluation Assets (Tables)

12 Months Ended

Apr. 30, 2020

Disclosure Of Exploration And Evaluation Assets [Abstract]

Summary of Exploration and Evaluation assets

	AJC Properties			Creston Properties		Total
Acquisition costs:
Balance, April 30, 2020, 2019 and 2018	$	36		$	2,001	$	2,037
Exploration costs:
Balance, April 30, 2018	$	1,809		$	1,331	$	3,140
Geological		22			1		23
Maintenance		121			273		394
Property Disposition		(82	)		-		(82	)
Recovery of property cost		(32	)		-		(32	)
Foreign Exchange		22			9		31
Balance, April 30, 2019	$	1,860		$	1,614	$	3,474
Maintenance		147			280		427
Exploration cost		1			-		1
Foreign Exchange		-			37		37
Balance, April 30, 2020	$	2,008		$	1,931	$	3,939
Total Exploration and evaluation assets
Balance, April 30, 2019	$	1,896		$	3,615	$	5,511
Balance, April 30, 2020	$	2,044		$	3,932	$	5,976