Note 1 - Significant Accounting Policies and Related Matters - Disaggregation of Revenue by Major Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Revenue	$ 154,424	$ 129,366
Americas [Member]
Revenue	102,265	81,470
EMEA [Member]
Revenue	42,132	39,193
Asia Pacific [Member]
Revenue	$ 10,027	$ 8,703

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details