Note 2 - Contracts With Customers - Information About Receivables, Contract Assets, and Contract Liabilities From Contracts With Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Accounts receivables	$ 11,127		$ 12,378
Deferred Revenue	15,194		14,834
Revenue recognized that was included in deferred revenue at beginning of year due to completion of services	(7,303)	$ (7,056)
Increases due to invoicing of client, net of amounts recognized as revenue	7,672	7,828
Decreases due to completion of services (or portion of services) and transferred to accounts receivable	(39)	(37)
Change due to cumulative catch-up adjustments arising from changes in expected contract consideration	(9)	(74)
Increases due to revenue recognized in the period with additional performance obligations before invoicing	32	$ 88
Other Current Assets [Member]
Contract assets included in other current assets	$ 77		$ 84