Note 12 - Accrued Liabilities - Components of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Contract liabilities (Note 3)	$ 174	$ 390	$ 850
Warranty reserve (Note 13)	159	159
Other accrued liabilities	435	312
Total other accrued liabilities	$ 768	$ 861