Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2023 and September 30, 2022, are summarized in the following tables by the type of inputs applicable to the fair value measurements:

	June 30, 2023
			Total Fair Value		Quoted Prices (Level 1)		Significant Unobservable Inputs (Level 3)
Executive savings plan assets		$	821	$	821	$	—
Executive savings plan liabilities			(694)		(694)		—
Contingent consideration liability			(4,429)		—		(4,429)
Total		$	(4,302)	$	127	$	(4,429)

	September 30, 2022
			Total Fair Value		Quoted Prices (Level 1)		Significant Unobservable Inputs (Level 3)
Executive savings plan assets		$	706	$	706	$	—
Equity securities			1,937		1,937		—
Executive savings plan liabilities			(585)		(585)		—
Contingent consideration liability			(4,323)		—		(4,323)
Total		$	(2,265)	$	2,058	$	(4,323)

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The table below presents the change in fair value of this obligation, which used significant unobservable inputs (Level 3).

		Contingent Consideration Agreements
Fair value at September 30, 2022	$	(4,323)
Net adjustments to fair value		(106)
Fair value at June 30, 2023	$	(4,429)