Note 3 - Revenue Recognition and Sales Commissions - Revenues Disaggregated By Revenue Source (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues	$ 71,556	$ 69,198	$ 144,316	$ 138,144
Subscription Services [Member]
Revenues	69,013	66,506	139,218	132,521
Professional Services [Member]
Revenues	$ 2,543	$ 2,692	$ 5,098	$ 5,623

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