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Subsequent Events (Narrative) (Details)
1 Months Ended 6 Months Ended
Apr. 01, 2022
USD ($)
a
May 31, 2022
USD ($)
a
Mar. 31, 2022
USD ($)
Subsequent Event [Line Items]      
Borrowings under Credit Facility     $ 10,000,000
Subsequent Event [Member]      
Subsequent Event [Line Items]      
Borrowings under Credit Facility $ 4,300,000    
Net royalty acres | a   983  
Total Purchase Price   $ 9,400,000  
Subsequent Event [Member] | SCOOP of Oklahoma and Haynesville of Louisiana [Member]      
Subsequent Event [Line Items]      
Net royalty acres | a 185    
Total Purchase Price $ 1,500,000