Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis by level of the fair value hierarchy were as follows:

	December 31, 2020
(In thousands)	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value
Assets
Cash equivalents	$	—	$	24,865	$	—	$	24,865
Available-for-sale securities		—		18,120		—		18,120
Total assets	$	—	$	42,985	$	—	$	42,985

	September 30, 2020
(In thousands)	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value
Assets
Cash equivalents	$	—	$	18,634	$	—	$	18,634
Available-for-sale securities		—		30,313		—	$	30,313
Total assets	$	—	$	48,947	$	—	$	48,947