Note 13 - Consolidated Balance Sheet Detail - Accrued Liabilities and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Accrued expenses	$ 1,656	$ 472
Accrued taxes	27	112
Accrued compensation	4,351	2,898
Deferred revenue, current	814	931
Other	294	130
Total accrued expenses and other current liabilities	$ 7,142	$ 4,543