Note 12 - Accrued Liabilities - Components of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Contract liabilities (Note 3)	$ 578	$ 390	$ 850
Other accrued liabilities	309	471
Total other accrued liabilities	$ 887	$ 861