Note 3 - Supplemental Balance Sheet Information (in Thousands) - Goodwill Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Balance	$ 4,166
Change in goodwill due to impact of foreign currency	0
Impairment of goodwill	(2,458)	$ 0
Balance	1,708	4,166
UNITED STATES
Balance	3,728
Change in goodwill due to impact of foreign currency	0
Impairment of goodwill	(2,458)
Balance	1,270	3,728
Asia Pacific [Member]
Balance	0
Change in goodwill due to impact of foreign currency	0
Impairment of goodwill	0	0
Balance	0	0
EMEA [Member]
Balance	438
Change in goodwill due to impact of foreign currency	0
Impairment of goodwill	0	0
Balance	$ 438	$ 438