Note 1 - Summary of Significant Accounting Policies - Noncurrent Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property and Equipment, Net	$ 6,408	$ 5,833
Operating Lease Assets	7,850	8,983
Other Assets	422	501
UNITED STATES
Property and Equipment, Net	5,109	4,664
Operating Lease Assets	5,381	5,287
Other Assets	422	501
MEXICO
Property and Equipment, Net	494	454
Operating Lease Assets	2,469	2,800
Other Assets	0	0
CHINA
Property and Equipment, Net	805	715
Operating Lease Assets	0	896
Other Assets	$ 0	$ 0