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Investment In Unconsolidated Entities - Additional Information (Detail)			3 Months Ended			6 Months Ended		12 Months Ended
	Jul. 03, 2023 shares	Jun. 04, 2023 USD ($) shares	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2017 shares	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2012 shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Schedule of Equity Method Investments [Line Items]
Investment carrying value			$ 9,837,828			$ 9,837,828			$ 9,885,779
Equity method investment realized gain loss on disposal			$ (249,244)	$ (133,419)		(318,108)	$ (347,365)
Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Contribution agreement equity interests issued or issuable number of additional shares issued value						$ 10,000,000
Ocean Minerals, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of issued and outstanding membership owned			0.07			0.07			0.07
Investment carrying value			$ 4,600,000			$ 4,600,000			$ 4,900,000
Assumption of changes in put option liability			0	1,000,000		0	(200,000)
Equity method investment realized gain loss on disposal			$ (200,000)	$ (100,000)		$ (300,000)	$ (300,000)
Ocean Minerals, LLC [Member] | Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of shares held by the company			3.00%			3.00%
Ocean Minerals, LLC [Member] | Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Percentage of shares held by the company			5.00%			5.00%
Odyssey Minerals Cayman Limited [Member] | Unit Purchase Agreement [Member] | Ocean Minerals, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Units sold to purchaser | shares		733,497
Purchase price		$ 15,000,000
Percentage of issued and outstanding membership interest units purchased		15.00%
Initial closing purchased units issued | shares	293,399
Neptune Minerals, Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage			14.00%			14.00%
Loss from unconsolidated entity			$ 21,300,000			$ 21,300,000
Neptune Minerals, Inc. [Member] | Common Class A [Member]
Schedule of Equity Method Investments [Line Items]
Investment carrying value			$ 0			$ 0
Chatham Rock Phosphate, Limited [Member]
Schedule of Equity Method Investments [Line Items]
Investment carrying value										$ 0
Ownership percentage			1.00%			1.00%
Deep sea mining exploratory services						$ 1,700,000
Shares received from CRP | shares					141,884			9,320,348
Outstanding equity stake in CRP					1.00%

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