Note 13 - Restructuring Activities - Charges and Net Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Revenues	$ 26,677	$ 25,133
Net loss	(2,324)	(1,943)
Total assets	47,179	48,797
Total liabilities	7,247	6,842
CHINA
Revenues	0	0
Net loss	(63)	(53)
Total assets	767	788
Total liabilities	83	84
Total net assets	$ 684	$ 704