Note 4 - Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2023

Notes Tables

Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

	June 30, 2023
	Level 1		Level 2		Level 3		Total
	(In thousands)
Money market fund deposits	$	58,633	$	-	$	-	$	58,633
Mutual fund investments		10		-		-		10
Total	$	58,643	$	-	$	-	$	58,643
Amounts included in:
Cash and cash equivalents	$	58,633	$	-	$	-	$	58,633
Investments in marketable securities		10		-		-		10
Total	$	58,643	$	-	$	-	$	58,643

	September 30, 2022
	Level 1		Level 2		Level 3		Total
	(In thousands)
Money market fund deposits	$	54,225	$	-	$	-	$	54,225
Mutual fund investments		9		-		-		9
Total	$	54,234	$	-	$	-	$	54,234
Amounts included in:
Cash and cash equivalents	$	54,225	$	-	$	-	$	54,225
Investments in marketable securities		9		-		-		9
Total	$	54,234	$	-	$	-	$	54,234