Note 14 - Domestic and Foreign Revenues - Schedule of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net sales	$ 498	$ 392
SPAIN
Net sales	100	48
NORWAY
Net sales	34	0
UNITED KINGDOM
Net sales	32	0
AUSTRALIA
Net sales	30	0
INDIA
Net sales	0	84
ROMANIA
Net sales	0	94
All Other Foreign Countries [Member]
Net sales	54	33
Non-US [Member]
Net sales	250	259
UNITED STATES
Net sales	$ 248	$ 133