Employee Benefit Plans (Tables)

6 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Schedule of net benefit costs

The components of net periodic benefit cost for the plans were as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
	2023		2022		2023		2022
Service cost	$	143	$	227	$	280	$	459
Interest cost	205		107		401		215
Expected return on plan assets	(114)		(129)		(222)		(261)
Amortization of actuarial (gains) losses	(15)		166		(28)		335
Pension expense for defined benefit plans	$	219	$	371	$	431	$	748