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Note 2 - Revenue (Tables)

6 Months Ended

Mar. 31, 2024

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Three Months Ended March 31, 2024												Three Months Ended March 31, 2023
		Gas utility				Non utility				Total operating revenues				Gas utility				Non utility				Total operating revenues
Natural Gas (Billed and Unbilled):
Residential		$	18,843,065			$	—			$	18,843,065			$	21,376,436			$	—			$	21,376,436
Commercial			10,398,801				—				10,398,801				12,025,056				—				12,025,056
Transportation and interruptible			1,358,991				—				1,358,991				1,565,170				—				1,565,170
Other			190,719				27,045				217,764				262,923				28,680				291,603
Total contracts with customers			30,791,576				27,045				30,818,621				35,229,585				28,680				35,258,265
Alternative revenue programs			1,840,755				—				1,840,755				2,771,392				—				2,771,392
Total operating revenues		$	32,632,331			$	27,045			$	32,659,376			$	38,000,977			$	28,680			$	38,029,657

		Six Months Ended March 31, 2024												Six Months Ended March 31, 2023
		Gas utility				Non utility				Total operating revenues				Gas utility				Non utility				Total operating revenues
Natural Gas (Billed and Unbilled):
Residential		$	32,667,707			$	—			$	32,667,707			$	40,742,276			$	—			$	40,742,276
Commercial			18,240,077				—				18,240,077				24,044,169				—				24,044,169
Transportation and interruptible			2,729,261				—				2,729,261				3,153,238				—				3,153,238
Other			485,057				54,543				539,600				684,918				58,248				743,166
Total contracts with customers			54,122,102				54,543				54,176,645				68,624,601				58,248				68,682,849
Alternative revenue programs			2,902,083				—				2,902,083				2,629,143				—				2,629,143
Total operating revenues		$	57,024,185			$	54,543			$	57,078,728			$	71,253,744			$	58,248			$	71,311,992

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, 2023		$	2,782,025			$	1,240,097			$	1,972,132			$	1,476,321
Balance at March 31, 2024			6,485,713				2,850,532				947,563				1,697,018
Increase (decrease)		$	3,703,688			$	1,610,435			$	(1,024,569	)		$	220,697

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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X

- 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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- References

No definition available.

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