Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Summary of Financial Assets that are Measured at Fair Value and Indicates the Fair Value Hierarchy of the Valuation Inputs

The following table presents information about our financial assets that are measured at fair value and indicates the fair value hierarchy of the valuation inputs used (dollars in thousands) as of:

	March 31, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents:
Money market funds	$	81,644	$	-	$	-	$	81,644
Marketable securities:
Short-term:
Commercial paper, $13,489 at cost	$	-	$	13,489	$	-	$	13,489
Corporate bonds, $3,608 at cost		-		3,607		-		3,607
Long-term:
Corporate bonds, $933 at cost		-		933		-		933
Total assets	$	81,644	$	18,029	$	-	$	99,673

	September 30, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents:
Money market funds	$	101,437	$	-	$	-	$	101,437
Marketable securities:
Commercial paper, $9,883 at cost	$	-	$	9,883	$	-	$	9,883
Corporate bonds, $1,780 at cost		-		1,779		-		1,779
Total assets	$	101,437	$	11,662	$	-	$	113,099