Note 9 - Other Assets - Schedule of Other Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2024	Jun. 30, 2023
U.S. Treasury notes (1)	[1]	$ 34,867	$ 0
Restricted cash		409	492
Other assets		1,537	1,712
Other assets		$ 36,813	$ 2,204

[1] Our long-term investments in U.S. Treasury notes as of March 31, 2024 have maturities between one and two years.