Note 17 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Net operating loss carryforwards	$ 17,002	$ 14,898
Sec. 174 capitalization	1,494	0
Research and development credits	81	65
Stock Based Compensation	1,447	1,216
Accruals and Other	995	324
Total deferred tax assets (gross)	21,018	16,503
Less valuation allowance	(20,302)	(15,969)
Net deferred tax assets	716	534
Depreciation and other	(716)	(534)
Net deferred tax liabilities	(716)	(534)
Net deferred income taxes	$ 0	$ 0