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The contribution received upon completing a Technical Improvement Plan.

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The cash inflow from the additional capital contribution to the entity.

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Cash received on stock transaction after deduction of issuance costs.

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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Nature of Business and Basis of Presentation (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended				6 Months Ended	21 Months Ended
	Dec. 30, 2025	Apr. 10, 2024	Apr. 30, 2026	Jan. 31, 2026	Apr. 30, 2025	Jan. 31, 2025	Apr. 30, 2026	Dec. 31, 2025	Dec. 30, 2025	Oct. 31, 2025
Nature of Business and Basis of Presentation
Cash and cash equivalents, unrestricted			$ 373,167		$ 116,061		$ 373,167			$ 278,099
Stock issued share value			100,392	$ 54,917	$ 7,665	$ 5,892
U.S. Treasury Securities
Nature of Business and Basis of Presentation
Investments - short-term			0				$ 0			$ 0
Common Stock
Nature of Business and Basis of Presentation
Stock issued share value			$ 1
Shares sold during the period			10,861,233	6,377,246	1,626,319	690,711
Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC \| Amended Open Market Sales Agreement
Nature of Business and Basis of Presentation
Aggregate offering price	$ 200,000	$ 300,000
Stock issued share value								$ 300,000	$ 300,000
Shares sold during the period			10,900,000				17,200,000
Average sale of stock price per share			$ 9.45				$ 9.22
Gross proceeds from sale of common stock			$ 102,600				$ 158,900
Net proceeds from issuance of common stock			100,400				155,300
Sales commission			2,100				3,200
Payments of fees			$ 100				$ 400
Groton Project
Nature of Business and Basis of Presentation
Contribution received under the Technical Improvement Plan				$ 4,000