XML 55 R43.htm IDEA: XBRL DOCUMENT v3.24.1.u1

Note 4 - Rates and Regulatory Matters (Details Textual)						3 Months Ended
	Feb. 02, 2024 USD ($)	Jul. 07, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 21, 2022 USD ($)	Dec. 02, 2022 USD ($)	Dec. 31, 2023 USD ($)	Jul. 19, 2022	Jun. 02, 2022
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 4,330,000				$ 8,550,000
Public Utilities, Approved Return on Equity, Percentage	9.44%
Public Utilities, Requested Return on Equity, Percentage	10.35%
Regulated Operating Revenue, SAVE Revenue					$ 4,050,000.00
Public Utilities, Approved Rate Increase (Decrease), Amount				$ 7,450,000
Recovery Costs, SAVE Eligible Expenses			$ 8,500,000
Investments			$ 49,500,000
SAVE Annual Revenues		$ 366,000
Number of Locations, Natural Gas Delivery Assets, Requested Acquisition								5
Number of Locations, Natural Gas Delivery Assets, Approved Acquisition							2
Natural Gas Delivery Assets [Member] | Housing Authority Management [Member]
Asset Acquisition, Recognized Pre-tax Gain						$ 311,000

X

- Definition

Amount of recognized pre-tax gain from the acquisition of assets.

+ References

No definition available.

+ Details

Name:	rgco_AssetAcquisitionRecognizedPretaxGain
Namespace Prefix:	rgco_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Number of locations where the request for asset acquisition of natural gas delivery has been approved.

+ References

No definition available.

+ Details

Name:	rgco_NumberOfLocationsNaturalGasDeliveryAssetsApprovedAcquisition
Namespace Prefix:	rgco_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of locations where the acquisition of assets related to natural gas delivery has been requested.

+ References

No definition available.

+ Details

Name:	rgco_NumberOfLocationsNaturalGasDeliveryAssetsRequestedAcquisition
Namespace Prefix:	rgco_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the recovery costs associated with SAVE eligible expenses.

+ References

No definition available.

+ Details

Name:	rgco_RecoveryCostsSaveEligibleExpenses
Namespace Prefix:	rgco_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The amount of regulated SAVE operating revenues recognized during the period.

+ References

No definition available.

+ Details

Name:	rgco_RegulatedOperatingRevenueSaveRevenue
Namespace Prefix:	rgco_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The represented annual revenues under the SAVE program.

+ References

No definition available.

+ Details

Name:	rgco_SAVEAnnualRevenues
Namespace Prefix:	rgco_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 80
-Name Accounting Standards Codification
-Section 55
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480078/944-80-55-14

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 80
-Name Accounting Standards Codification
-Section 55
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480078/944-80-55-9

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(h))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(6))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

+ Details

Name:	us-gaap_Investments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of public utility's approved rate increase (decrease) by regulatory agency.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Percentage of public utility's approved return on equity.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Percentage of public utility's requested return on equity.

+ References

No definition available.

+ Details

Name:	us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_AssetAcquisitionAxis=rgco_NaturalGasDeliveryAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=rgco_HousingAuthorityManagementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: