Investment in BeMetals Corp (Narrative) (Details) - USD ($)	1 Months Ended	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Net Investment Income [Line Items]
Investment in BeMetals, at fair value		$ 1,281,620		$ 1,520,684
Unrealized gain (loss) on investment		(239,064)	$ (234,518)
BeMetals USA Corp [Member]
Net Investment Income [Line Items]
Investment in BeMetals, at fair value		$ 1,281,620		$ 1,520,684
BeMetals Option Agreement [Member] | BeMetals USA Corp [Member]
Net Investment Income [Line Items]
Number of common shares received	10,000,000
Fair value of common shares received	$ 1,883,875