Distribution allowance.

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Leverage ratio.

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No definition available.

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Mineral acreage acquired.

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No definition available.

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Percentage of available commitment to total commitment for increasing distribution allowance.

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No definition available.

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Purchase and sales agreement date.

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No definition available.

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- Definition

Royalty acres acquired.

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No definition available.

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- Definition

Secured borrowing base credit facility.

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No definition available.

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Secured borrowing base credit facility, quarterly reduction amount.

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No definition available.

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Secured borrowing base credit facility quarterly reduction term description.

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No definition available.

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Number of shares of equity interests issued or issuable to acquire entity.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Date the credit facility terminates, in CCYY-MM-DD format.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Number of new stock issued during the period.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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No definition available.

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Subsequent Events (Narrative) (Details)										3 Months Ended	6 Months Ended
Subsequent Events (Narrative) (Details)	Apr. 30, 2021 USD ($) a shares	Apr. 28, 2021 USD ($)	Apr. 23, 2021 USD ($) shares	Apr. 15, 2021 USD ($)	Apr. 14, 2021 USD ($)	Apr. 07, 2021 USD ($) Ratio	Apr. 06, 2021 USD ($)	Dec. 04, 2020 USD ($)	Jun. 24, 2020 USD ($)	Dec. 31, 2020 shares	Mar. 31, 2021 USD ($)
Subsequent Event [Line Items]
Estimated net proceeds											$ (53,482)
Class A voting Common Stock [Member]
Subsequent Event [Line Items]
Public offering of shares (inclusive of overallotment option) \| shares										153,375
Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Borrowing base of credit facility								$ 30,000,000			$ 29,400,000
Credit facility maturity											Nov. 30, 2022
Borrowing base of credit facility, quarterly reduction amount								$ 600,000	$ 1,000,000
Borrowing base of credit facility, quarterly reduction term description								The amendment reduced the Quarterly Commitment Reductions from $1,000,000 to $600,000
Credit facility outstanding amount											$ 23,500,000
Subsequent Event [Member] \| Sellers [Member]
Subsequent Event [Line Items]
Purchase and sales agreement date	Apr. 14, 2021
Aggregate consideration	$ 10,939,875
Royalty Acres Acquired \| a	2,514
Mineral acreage acquired \| a	1,889
Cash consideration	$ 8,539,875
Equity consideration \| shares	1,200,000
Subsequent Event [Member] \| Class A voting Common Stock [Member] \| Underwritten Public Offering [Member]
Subsequent Event [Line Items]
Public offering of shares (inclusive of overallotment option) \| shares			6,175,000
Estimated net proceeds			$ 11,200,000
Subsequent Event [Member] \| Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Credit facility paid		$ 1,750,000
Credit facility outstanding amount		$ 21,750,000
Subsequent Event [Member] \| Revolving Credit Facility [Member] \| BOKF, NA dba Bank of Oklahoma [Member]
Subsequent Event [Line Items]
Borrowing base of credit facility						$ 29,000,000.0
Credit facility maturity						Nov. 30, 2023
Borrowing base of credit facility, quarterly reduction amount				$ 500,000	$ 600,000
Borrowing base of credit facility, quarterly reduction term description						Quarterly Commitment Reductions from $600,000 to $500,000, commencing on April 15, 2021.
Distribution allowance						$ 1,500,000	$ 1,000,000.0
Percentage of available commitment to total commitment for increasing distribution allowance						20.00%
Subsequent Event [Member] \| Revolving Credit Facility [Member] \| Maximum [Member] \| BOKF, NA dba Bank of Oklahoma [Member]
Subsequent Event [Line Items]
Leverage ratio \| Ratio						2.75