Mineral Property Interests (Schedule of Mineral Property Interests) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Mineral Industries Disclosures [Abstract]
Balance at January 1, 2018	$ 1	$ 1	$ 1	$ 1
Carson Property acquisition				15,000
Impairment charge Carson Property				(15,000)
Rollo Property			25,000
Janes Reef Property			16,000
Asquith Property			10,000
C1 Mortimer amendment		359,760	941,460
Chewett Property		60,360
King Solomon Mines Property		1,280,000
Borden Lake North	15,000
Impairment charge	15,000	(1,700,120)	(992,460)
Balance at December 31, 2019 and March 31, 2020	$ 1	$ 1	$ 1	$ 1