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Note 2 - Revenue (Tables)

3 Months Ended

Dec. 31, 2021

Notes Tables

Disaggregation of Revenue [Table Text Block]

		Three Months Ended December 31, 2021												Three Months Ended December 31, 2020
		Gas utility				Non utility				Total operating revenues				Gas utility				Non utility				Total operating revenues
Natural Gas (Billed and Unbilled):
Residential		$	13,212,489			$	—			$	13,212,489			$	11,246,194			$	—			$	11,246,194
Commercial			7,385,718				—				7,385,718				5,990,020				—				5,990,020
Industrial and Transportation			1,313,091				—				1,313,091				1,223,801				—				1,223,801
Other			223,828				31,425				255,253				161,077				33,517				194,594
Total contracts with customers			22,135,126				31,425				22,166,551				18,621,092				33,517				18,654,609
Alternative Revenue Programs			1,096,529				—				1,096,529				862,408				—				862,408
Total operating revenues		$	23,231,655			$	31,425			$	23,263,080			$	19,483,500			$	33,517			$	19,517,017

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, 2021		$	3,722,916			$	1,191,227			$	1,539,680			$	1,571,342
Balance at December 31, 2021			8,237,566				3,476,497				1,387,836				1,611,093
Increase (decrease)		$	4,514,650			$	2,285,270			$	(151,844	)		$	39,751

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

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No definition available.

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