Note 9 - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accrued compensation	$ 4,638	$ 4,351
Accrued expenses	1,954	1,656
Deferred revenue, current	431	814
Accrued taxes	33	27
Other	131	294
Total accrued expenses and other current liabilities	$ 7,187	$ 7,142