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Note 11 - Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Jun. 30, 2025

Notes Tables

Comprehensive Income (Loss) [Table Text Block]

						Tax
		Before-Tax				(Expense)				Net-of-Tax
		Amount				or Benefit				Amount
Three Months Ended June 30, 2025
Interest rate swaps:
Unrealized losses		$	(20,816	)		$	5,358			$	(15,458	)
Transfer of realized gains to interest expense			(323,513	)			83,273				(240,240	)
Net interest rate swaps			(344,329	)			88,631				(255,698	)
Defined benefit plans:
Amortization of net actuarial gains			(10,379	)			2,671				(7,708	)
Other comprehensive loss		$	(354,708	)		$	91,302			$	(263,406	)
Three Months Ended June 30, 2024
Interest rate swaps:
Unrealized gains		$	207,785			$	(53,484	)		$	154,301
Transfer of realized gains to interest expense			(476,053	)			122,535				(353,518	)
Net interest rate swaps			(268,268	)			69,051				(199,217	)
Defined benefit plans:
Amortization of net actuarial losses			16,015				(4,122	)			11,893
Other comprehensive loss		$	(252,253	)		$	64,929			$	(187,324	)

						Tax
		Before-Tax				(Expense)				Net-of-Tax
		Amount				or Benefit				Amount
Nine Months Ended June 30, 2025
Interest rate swaps:
Unrealized gains		$	507,492			$	(130,628	)		$	376,864
Transfer of realized gains to interest expense			(1,034,976	)			266,403				(768,573	)
Net interest rate swaps			(527,484	)			135,775				(391,709	)
Defined benefit plans:
Amortization of net actuarial gains			(31,134	)			8,013				(23,121	)
Other comprehensive loss		$	(558,618	)		$	143,788			$	(414,830	)
Nine Months Ended June 30, 2024
Interest rate swaps:
Unrealized gains		$	174,113			$	(44,816	)		$	129,297
Transfer of realized gains to interest expense			(1,554,942	)			400,240				(1,154,702	)
Net interest rate swaps			(1,380,829	)			355,424				(1,025,405	)
Defined benefit plans:
Amortization of net actuarial losses			48,045				(12,366	)			35,679
Other comprehensive loss		$	(1,332,784	)		$	343,058			$	(989,726	)

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

										Accumulated
										Other
		Interest Rate				Defined Benefit				Comprehensive
		Swaps				Plans				Income (Loss)
Balance at September 30, 2024		$	1,531,649			$	(205,078	)		$	1,326,571
Other comprehensive loss			(391,709	)			(23,121	)			(414,830	)
Balance at June 30, 2025		$	1,139,940			$	(228,199	)		$	911,741

X

- Definition

Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481694/830-30-45-20

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Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Paragraph 1
-Section 45
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-1

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