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Commitments and Contingencies - Additional Information (Detail) - USD ($) shares in Millions		1 Months Ended	3 Months Ended	9 Months Ended
	Mar. 11, 2015	Mar. 31, 2016	Sep. 30, 2019	Sep. 30, 2019	Aug. 31, 2019	Dec. 31, 2018
Gain Contingencies [Line Items]
Cash and cash equivalents			$ 303,677	$ 303,677		$ 2,786,832
Working capital deficit			48,000,000	48,000,000
Total assets			4,778,568	4,778,568		$ 5,473,170
Cash Lease Obligation			727,521	727,521
Lease Obligation			571,856	571,856	$ 590,612
Right Of Use Asset			$ 570,398	$ 570,398	$ 590,612
Annual increases of base rent			3.00%	3.00%
Operating lease expense			$ 25,000
FLORIDA
Gain Contingencies [Line Items]
Effective Date Of Operating Lease Agreement			Oct. 01, 2019
Cash Lease Obligation			$ 257,430	$ 257,430
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
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
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] | FLORIDA
Gain Contingencies [Line Items]
Monthly Lease Payments			4,547
Maximum [Member] | Building [Member]
Gain Contingencies [Line Items]
Monthly Lease Payments				13,269
Minimum [Member] | FLORIDA
Gain Contingencies [Line Items]
Monthly Lease Payments			$ 4,040
Minimum [Member] | Building [Member]
Gain Contingencies [Line Items]
Monthly Lease Payments				$ 11,789

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