Financial Statement Presentation - Nature of Operations (Details) $ in Thousands	Mar. 31, 2024 USD ($) item	Jun. 30, 2023 USD ($)
Reclassification [Line Items]
Number of wells with overriding royalty interest \| item	4
Accrued taxes other than federal and state income tax	$ 1,166	$ 739
Accrued payables	$ 2,789	3,005
Revision of Prior Period, Reclassification, Adjustment [Member]
Reclassification [Line Items]
Accrued taxes other than federal and state income tax		600
Accrued payables		$ (600)

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 8
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483467/210-10-45-8

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-Publisher FASB
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 720
-SubTopic 30
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483384/720-30-45-1

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant