Note 5 - Fair Value Measurements (Tables)

9 Months Ended

Mar. 31, 2022

Notes Tables

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

	Fair Value Measurements at March 31, 2022
Assets	Level 1		Level 2		Level 3		Balance
Corporate money market funds(1)	$	32,152	$	-	$	-	$	32,152
Investments(2)		-		9,525		-		9,525
Total	$	32,152	$	9,525	$	-	$	41,677

	Fair Value Measurements at June 30, 2021
Assets	Level 1		Level 2		Level 3		Balance
Corporate money market funds(1)	$	70,247	$	-	$	-	$	70,247
Investments(2)		-		-		-		-
Total	$	70,247	$	-	$	-	$	70,247