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

6 Months Ended

Mar. 31, 2025

Notes Tables

Comprehensive Income (Loss) [Table Text Block]

						Tax
		Before-Tax				(Expense)				Net-of-Tax
		Amount				or Benefit				Amount
Three Months Ended March 31, 2025
Interest rate swaps:
Unrealized losses		$	(165,869	)		$	42,695			$	(123,174	)
Transfer of realized gains to interest expense			(327,190	)			84,218				(242,972	)
Net interest rate swaps			(493,059	)			126,913				(366,146	)
Defined benefit plans:
Amortization of net actuarial gains			(10,377	)			2,671				(7,706	)
Other comprehensive loss		$	(503,436	)		$	129,584			$	(373,852	)
Three Months Ended March 31, 2024
Interest rate swaps:
Unrealized gains		$	802,399			$	(206,537	)		$	595,862
Transfer of realized gains to interest expense			(533,706	)			137,376				(396,330	)
Net interest rate swaps			268,693				(69,161	)			199,532
Defined benefit plans:
Amortization of net actuarial losses			16,015				(4,122	)			11,893
Other comprehensive income		$	284,708			$	(73,283	)		$	211,425

						Tax
		Before-Tax				(Expense)				Net-of-Tax
		Amount				or Benefit				Amount
Six Months Ended March 31, 2025
Interest rate swaps:
Unrealized gains		$	528,308			$	(135,986	)		$	392,322
Transfer of realized gains to interest expense			(711,463	)			183,130				(528,333	)
Net interest rate swaps			(183,155	)			47,144				(136,011	)
Defined benefit plans:
Amortization of net actuarial gains			(20,755	)			5,342				(15,413	)
Other comprehensive loss		$	(203,910	)		$	52,486			$	(151,424	)
Six Months Ended March 31, 2024
Interest rate swaps:
Unrealized losses		$	(33,672	)		$	8,668			$	(25,004	)
Transfer of realized gains to interest expense			(1,078,889	)			277,705				(801,184	)
Net interest rate swaps			(1,112,561	)			286,373				(826,188	)
Defined benefit plans:
Amortization of net actuarial losses			32,030				(8,244	)			23,786
Other comprehensive loss		$	(1,080,531	)		$	278,129			$	(802,402	)

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			(136,011	)			(15,413	)			(151,424	)
Balance at March 31, 2025		$	1,395,638			$	(220,491	)		$	1,175,147

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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- Definition

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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