Note 10 - Accrued Expenses - Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jun. 30, 2021
Payroll and related costs	$ 1,641	$ 1,362
Commissions	81	51
Legal and audit	412	321
Sales tax	488	9
Utilities	153	91
Warranty	16	14
Accrued purchase of materials and property, plant and equipment	362	144
Provision for reinstatement	309	290
Deferred income	60	67
Other accrued expenses	347	279
Currency translation effect	1	62
Total	$ 3,870	$ 2,690