Note 9 - Other Accrued Expenses - Other Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Professional fees	$ 889	$ 548
Vendors payable	460	225
ETF operating and distribution expenses	385	496
Other taxes payable	97	76
Other accrued expenses	$ 1,831	$ 1,345