Note 12 - Accrued Liabilities - Components of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Contract liabilities (Note 3)	$ 775	$ 1,279	$ 372
Warranty reserve (Note 13)	159	159
Accrued professional fees	55	101
Deferred revenue	48	103
Other accrued liabilities	167	292
Total other accrued liabilities	$ 1,204	$ 1,934