Note 16 - Equity Incentive Plans - Summary of Stock-based Compensation 2 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-Based Payment Arrangement, Expense	$ 133	$ 177	$ 341	$ 277
Disaggregation of Income Statement Expense, Caption, Identifier [Axis]: us-gaap:ResearchAndDevelopmentExpense
Share-Based Payment Arrangement, Expense	11	59	47	102
Disaggregation of Income Statement Expense, Caption, Identifier [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Share-Based Payment Arrangement, Expense	$ 122	$ 118	$ 294	$ 175