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Note 2 - Revenue (Tables)

3 Months Ended

Dec. 31, 2024

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Three Months Ended December 31, 2024												Three Months Ended December 31, 2023
		Gas utility				Non utility				Total operating revenues				Gas utility				Non utility				Total operating revenues
Natural Gas (Billed and Unbilled):
Residential		$	15,821,884			$	—			$	15,821,884			$	13,824,642			$	—			$	13,824,642
Commercial			9,244,995				—				9,244,995				7,841,726				—				7,841,726
Transportation and interruptible			1,505,703				—				1,505,703				1,370,270				—				1,370,270
Other			245,811				26,282				272,093				293,888				27,498				321,386
Total contracts with customers			26,818,393				26,282				26,844,675				23,330,526				27,498				23,358,024
Alternative revenue programs			444,811				—				444,811				1,061,328				—				1,061,328
Total operating revenues		$	27,263,204			$	26,282			$	27,289,486			$	24,391,854			$	27,498			$	24,419,352

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

		Current Assets								Current Liabilities
		Trade accounts receivable(1)				Unbilled revenue(1)				Customer credit balances				Customer deposits
Balance at September 30, 2024		$	3,080,140			$	1,294,798			$	1,915,859			$	1,488,113
Balance at December 31, 2024			9,403,466				6,489,021				1,981,392				1,555,134
Increase		$	6,323,326			$	5,194,223			$	65,533			$	67,021

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-10

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-5

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No definition available.

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