Note 5 - Property and Equipment, Net - Schedule of Depreciation Expense (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Depreciation expense	$ 349	$ 365	$ 1,057	$ 1,135
General and Administrative [Member]
Depreciation expense	16	28	50	123
Research and Development [Member]
Depreciation expense	$ 333	$ 337	$ 1,007	$ 1,012

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Period Type:	duration