Note 3 - Contracts With Customers - Information About Receivables, Contract Assets, and Contract Liabilities From Contracts With Customers (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Accounts receivables	$ 13,112		$ 13,728
Deferred Revenue	(15,496)		(17,213)
Revenue recognized that was included in deferred revenue at beginning of year due to completion of services	(12,962)	$ (11,605)
Increases due to invoicing of client, net of amounts recognized as revenue	11,182	12,318
Decreases due to completion of services (or portion of services) and transferred to accounts receivable	(81)	(170)
Increases due to acquisition		239
Change due to cumulative catch-up adjustments arising from changes in expected contract consideration	63	311
Increases due to revenue recognized in the period with additional performance obligations before invoicing	45	$ 9
Other Current Assets [Member]
Contract assets included in other current assets	$ 64		$ 99