Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI before tax, beginning balance	$ (3,777)		$ (607)
Accumulated other comprehensive income, tax, beginning balance	(345)		794
Accumulated other comprehensive income, beginning balance	(3,432)		187
Other comprehensive income (loss), net of tax	(107)		(203)
AOCI before tax, ending balance		$ (3,881)		$ (800)
Accumulated other comprehensive income, tax, ending balance		(342)		784
Accumulated other comprehensive income, ending balance	(3,539)	(3,539)		(16)
Accumulated Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI before tax, beginning balance	(3,382)		1,640
Other comprehensive income adjustments		(115)		(227)
Tax benefit (expense)		0
Other comprehensive income (loss), net of tax		(115)		(227)
AOCI before tax, ending balance		(3,497)		1,413
Accumulated Defined Benefit Plans Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive income adjustments		11		34
Tax benefit (expense)		3		(10)
Other comprehensive income (loss), net of tax		8		24
Minimum Post Retirement Benefit Plan Adjustments | Accumulated Defined Benefit Plans Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI before tax, beginning balance	$ (395)		$ (2,247)
Other comprehensive income adjustments		11		34
AOCI before tax, ending balance		$ (384)		$ (2,213)