Note 3 - Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025
Gross asset cost	$ 1,118	$ 1,118
Accumulated amortization	769	755
Net book value	$ 349	$ 364
Customer Relationships [Member]
Amortization period (Year)	11 years	11 years
Gross asset cost	$ 970	$ 970
Accumulated amortization	723	711
Net book value	$ 247	$ 260
Patents [Member]
Amortization period (Year)	20 years	20 years
Gross asset cost	$ 70	$ 70
Accumulated amortization	22	21
Net book value	$ 48	$ 49
Trademarks [Member]
Amortization period (Year)	20 years	20 years
Gross asset cost	$ 78	$ 78
Accumulated amortization	24	23
Net book value	$ 54	$ 55