Note 2 - Summary of Significant Accounting Policies - Accounts Receivable, Net, Deferred Revenue and Deferred Sales Commissions (Details) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Accounts Receivable, after Allowance for Credit Loss	[1]	$ 94,067	$ 73,348
Deferred Revenue		129,256	101,490
Capitalized Contract Cost, Net, Total		54,675	48,553
Accounts Receivable, after Allowance for Credit Loss	[1]	94,067	73,348
Deferred Revenue		129,256	101,490
Deferred Contract Costs		$ 54,675	$ 48,553

[1] Include long-term unbilled receivables.