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Note 13 - Employee Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Net Benefit Costs [Table Text Block]

		Three Months Ended								Six Months Ended
		March 31,								March 31,
		2022				2021				2022				2021
Components of net periodic pension cost:
Service cost		$	162,072			$	183,570			$	324,144			$	367,140
Interest cost			253,279				243,785				506,558				487,570
Expected return on plan assets			(457,888	)			(503,936	)			(915,776	)			(1,007,872	)
Recognized loss			36,600				125,535				73,200				251,070
Net periodic pension cost (benefit)		$	(5,937	)		$	48,954			$	(11,874	)		$	97,908

		Three Months Ended								Six Months Ended
		March 31,								March 31,
		2022				2021				2022				2021
Components of postretirement benefit cost:
Service cost		$	24,450			$	35,172			$	48,900			$	70,344
Interest cost			110,930				107,623				221,860				215,246
Expected return on plan assets			(166,541	)			(149,122	)			(333,082	)			(298,244	)
Recognized loss			—				38,664				—				77,328
Net postretirement benefit cost (benefit)		$	(31,161	)		$	32,337			$	(62,322	)		$	64,674

Summary of Employer Contributions to Defined Benefit Plans [Table Text Block]

		Fiscal Year-to-Date Contributions				Remaining Fiscal Year Contributions
Pension plan		$	—			$	500,000
Postretirement plan			—				400,000
Total		$	—			$	900,000

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Tabular disclosure of the summary of employer contributions to defined benefit plans.

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Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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