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Commitments and Contingencies - Additional Information (Detail) - USD ($) shares in Millions		1 Months Ended	3 Months Ended	6 Months Ended
	Mar. 11, 2015	Mar. 31, 2016	Jun. 30, 2020	Jun. 30, 2020	Jan. 31, 2020	Dec. 31, 2019
Gain Contingencies [Line Items]
Grant and potential future issuance of new equity shares					1.5
Cash and cash equivalents			$ 223,711	$ 223,711		$ 213,389
Working capital deficit			55,600,000	55,600,000
Total assets			5,372,608	5,372,608		$ 5,329,720
Lease Obligation			506,492	506,492
Right Of Use Asset			$ 498,474	$ 498,474
Annual increases of base rent			3.00%	3.00%
Operating lease expense			$ 54,000	$ 108,000
NAFTA Arbitration [Member] | Advisory Consultant Two [Member]
Gain Contingencies [Line Items]
Grant and potential future issuance of new equity shares					1.5
Building [Member]
Gain Contingencies [Line Items]
Lease Obligation			$ 590,612	$ 590,612
Rate Of Discount Used			10.00%	10.00%
Tenure Of Lease Agreement			5 years	5 years
Right Of Use Asset			$ 590,612	$ 590,612
Corporate Office Space [Member]
Gain Contingencies [Line Items]
Lease Obligation			178,718	178,718
Right Of Use Asset			176,469	$ 176,469
FLORIDA
Gain Contingencies [Line Items]
Effective Date Of Operating Lease Agreement				Oct. 01, 2019
Lease Obligation			$ 202,424	$ 202,424
Rate Of Discount Used			10.00%	10.00%
Tenure Of Lease Agreement			5 years	5 years
Right Of Use Asset			$ 202,424	$ 202,424
Penelope Mining LLC [Member]
Gain Contingencies [Line Items]
Investment in convertible preferred stock	$ 101,000,000
Investment agreement period	3 years
MINOSA [Member]
Gain Contingencies [Line Items]
Amount of debt financed	$ 14,750,000
Oceanica Resources S. de. R.L [Member]
Gain Contingencies [Line Items]
Grant and potential future issuance of new equity shares		3.0
Maximum [Member]
Gain Contingencies [Line Items]
Consultants contingent success fees		$ 700,000
Maximum [Member] | Building [Member]
Gain Contingencies [Line Items]
Monthly Lease Payments				13,269
Maximum [Member] | FLORIDA
Gain Contingencies [Line Items]
Monthly Lease Payments				4,547
Minimum [Member] | Building [Member]
Gain Contingencies [Line Items]
Monthly Lease Payments				11,789
Minimum [Member] | FLORIDA
Gain Contingencies [Line Items]
Monthly Lease Payments				$ 4,040

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