Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Supplemental Disclosures of Cash Flow Information

Supplemental Disclosures of Cash Flow Information (in thousands): 

	Year Ended September 30,
	2021		2020		2019
Cash paid (received) during the period for:
Interest received, net of interest expense	$	(73)	$	(753)	$	(873)
Income taxes paid (received), net of refunds	1,886		1,770		(5,219)
Non-cash capital expenditures	226		264		1,248