Note 2 - Summary of Significant Accounting Policies - Accounts Receivable, Net, Deferred Revenue and Deferred Sales Commissions (Details) - USD ($) $ in Thousands		Mar. 31, 2024	Dec. 31, 2023
Accounts Receivable, after Allowance for Credit Loss	[1]	$ 78,488	$ 94,067
Deferred Revenue		122,569	129,256
Deferred Contract Costs		$ 52,595	$ 54,675

[1] Include long-term unbilled receivables.