Note 10 - Leases - Lease Modifications (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022	Apr. 01, 2022	Dec. 31, 2021	Dec. 21, 2021
Total	$ 6,350
Operating Lease, Right-of-Use Asset	5,770			$ 5,919
Lease Facility in Singapore [Member]
Total	51		$ 51
Operating Lease, Right-of-Use Asset	51		$ 51
Lease Agreement, EMS Facility in Fremont, California [Member]
Total				202
Operating Lease, Right-of-Use Asset				202
Automobile Lease for Videology [Member]
Total	42			54
Operating Lease, Right-of-Use Asset	42	$ 42		54
Lease Agreement, Facility for Videology [Member]
Total				252
Operating Lease, Right-of-Use Asset				252
Facility for Acculogic Operation in Canada [Member]
Total	942
Operating Lease, Right-of-Use Asset	942
Facility for Acculogic Operation in California [Member]
Total	127
Operating Lease, Right-of-Use Asset	$ 127
Facility Lease From Acquisition of Acculogic [Member]
Total				78	$ 78,000
Operating Lease, Right-of-Use Asset				$ 76	$ 76,000