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Note 2 - Revenue (Tables)

12 Months Ended

Sep. 30, 2024

Notes Tables

Disaggregation of Revenue [Table Text Block]

		*2024*
		*Gas utility*				*Non utility*				*Total operating revenues*
Natural Gas (Billed and Unbilled):
Residential		$	46,472,676			$	—			$	46,472,676
Commercial			27,659,507				—				27,659,507
Transportation and Interruptible			5,414,157				—				5,414,157
Other			879,186				108,131				987,317
Total contracts with customers			80,425,526				108,131				80,533,657
Alternative revenue programs			4,107,575				—				4,107,575
Total operating revenues		$	84,533,101			$	108,131			$	84,641,232

		*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
Transportation and Interruptible			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

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, 2023		$	2,782,025			$	1,240,097			$	1,972,132			$	1,476,321
September 30, 2024			3,080,140				1,294,798				1,915,859				1,488,113
Increase (decrease)		$	298,115			$	54,701			$	(56,273	)		$	11,792