Note 4 - Acquisition of the Roughrider Project - Cash Flow on Acquisition (Details) - Roughrider Acquisition [Member] $ in Thousands	Oct. 14, 2022 USD ($)
Cash paid	$ (80,000)
Acquisition related costs	(2,117)
Acquisition of UEX, net of cash acquired	$ (82,117)

Amount of capitalized acquisition cost incurred during period and excluded from amortization for oil- and gas-producing activities accounted for under full cost method. Excludes exploration and development costs and capitalized interest.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 360
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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