Note 3 - Term Deposits - Term Deposits (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022
Short-term deposits	$ 5,968	$ 6,901
Currency translation effect on short-term deposits	(22)	(274)
Total short-term deposits	5,946	6,627
Restricted term deposits - Current	739	755
Currency translation effect on restricted term deposits	(2)	(16)
Total restricted term deposits - Current	737	739	$ 698
Restricted term deposits – Non-current	1,734	1,763
Currency translation effect on restricted term deposits	(15)	(47)
Total restricted term deposits - Non-current	1,719	1,716	$ 934
Total term deposits	$ 8,402	$ 9,082