Note 3 - Inventories (Details Textual) - Energy Related Inventory, Uranium [Member]	1 Months Ended	2 Months Ended
	Jan. 31, 2025 USD ($) lb	Dec. 31, 2024 USD ($) lb	Oct. 31, 2024 lb	Jul. 31, 2024 lb
Inventory, Balance , Mass (Pound) | lb			1,256,000	1,466,000
Subsequent Event [Member]
Proceeds from Nuclear Fuel		$ 41,400,000
Uranium Weighted Average Price Per Pound		$ 82.8
Forecast [Member]
Proceeds from Nuclear Fuel	$ 49,750
Inventories [Member] | Subsequent Event [Member]
Inventory, Decrease From Sales, Mass (Pound) | lb		500,000
Uranium Weighted Average Price Per Pound		$ 78.08
Long-Term Purchase Commitment, Minimum Mass Required (Pound) | lb		300,000
Long-Term Purchase Commitment, Amount		$ 23,430,000
Inventories [Member] | Forecast [Member]
Inventory, Decrease From Sales, Mass (Pound) | lb	600,000