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Note 2 - Revenue (Tables)

12 Months Ended

Sep. 30, 2023

Notes Tables

Disaggregation of Revenue [Table Text Block]

		*2023*
		*Gas utility*				*Non utility*				*Total operating revenues*
Natural Gas (Billed and Unbilled):
Residential		$	54,342,435			$	—			$	54,342,435
Commercial			33,083,485				—				33,083,485
Industrial and transportation			5,730,726				—				5,730,726
Other			1,122,710				114,458				1,237,168
Total contracts with customers			94,279,356				114,458				94,393,814
Alternative revenue programs			3,045,951				—				3,045,951
Total operating revenues		$	97,325,307			$	114,458			$	97,439,765

		*2022*
		*Gas utility*				*Non utility*				*Total operating revenues*
Natural Gas (Billed and Unbilled):
Residential		$	46,915,892			$	—			$	46,915,892
Commercial			28,874,522				—				28,874,522
Industrial and transportation			5,671,884				—				5,671,884
Other			822,140				129,578				951,718
Total contracts with customers			82,284,438				129,578				82,414,016
Alternative revenue programs			1,751,206				—				1,751,206
Total operating revenues		$	84,035,644			$	129,578			$	84,165,222

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*
September 30, 2022		$	3,697,431			$	1,585,062			$	1,400,770			$	1,457,610
September 30, 2023			2,782,025				1,240,097				1,972,132				1,476,321
Increase (decrease)		$	(915,406	)		$	(344,965	)		$	571,362			$	18,711