Note 9 - Other Accrued Expenses - Other Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Professional fees	$ 697	$ 889
Vendors payable	157	460
ETF operating and distribution expenses	344	385
Other taxes payable	76	97
Other accrued expenses	$ 1,274	$ 1,831