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Pension and Retirement Plans (Tables)

6 Months Ended

Mar. 31, 2023

Pension and Retirement Plans

Schedule of Net Benefit Costs

The components of net periodic benefit costs related to the U.S. and U.K. plans are as follows:


		Three Months Ended March 31,
		2023									2022
		U.K.			U.S.			Total			U.K.			U.S.			Total

		(Amounts in thousands)
Pension:
Interest cost		$	105		$	3		$	108		$	67		$	3		$	70
Expected return on plan assets			(140)			—			(140)			(114)			—			(114)
Amortization of past service costs			2			—			2			2			—			2
Amortization of net (gain) loss			—			(1)			(1)			24			1			25
Net periodic (benefit) cost		$	(33)		$	2		$	(31)		$	(21)		$	4		$	(17)

Post Retirement:
Service cost		$	—		$	6		$	6		$	—		$	11		$	11
Interest cost			—			16			16			—			11			11
Amortization of net gain			—			(49)			(49)			—			(2)			(2)
Net periodic (benefit) cost		$	—		$	(27)		$	(27)		$	—		$	20		$	20


		Six Months Ended March 31,
		2023									2022
		U.K.			U.S.			Total			U.K.			U.S.			Total

		(Amounts in thousands)
Pension:
Interest cost		$	211		$	7		$	218		$	138		$	5		$	143
Expected return on plan assets			(282)			—			(282)			(236)			—			(236)
Amortization of past service costs			4			—			4			4			—			4
Amortization of net (gain) loss			—			(2)			(2)			49			1			50
Net periodic (benefit) cost		$	(67)		$	5		$	(62)		$	(45)		$	6		$	(39)

Post Retirement:
Service cost		$	—		$	12		$	12		$	—		$	22		$	22
Interest cost			—			31			31			—			23			23
Amortization of net gain			—			(98)			(98)			—			(4)			(4)
Net periodic (benefit) cost		$	—		$	(55)		$	(55)		$	—		$	41		$	41

Schedule of fair value of Plan Assets

The fair value of the assets held by the U.K. pension plan by asset category are as follows:


		Fair Values as of
		March 31, 2023												September 30, 2022
		Fair Value Measurements Using Inputs Considered as												Fair Value Measurements Using Inputs Considered as
Asset Category		Total			Level 1			Level 2			Level 3			Total			Level 1			Level 2			Level 3

		(Amounts in thousands)
Cash on deposit		$	619		$	619		$	—		$	—		$	200		$	200		$	—		$	—
Fixed income			9,431			9,431			—			—			1,801			1,801			—			—
Equity			882			266			616			—			6,824			3,539			3,285			—
Total plan assets		$	10,932		$	10,316		$	616		$	—		$	8,825		$	5,540		$	3,285		$	—