Note 2 - Revenue Recognition (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Period of Revenue From Services (Month)	1 month
Subscription Revenue Term, Minimum (Year)	1 year
Subscription Revenue Term, Maximum (Year)	3 years
Contract with Customer, Liability, Revenue Recognized	$ 2,888
Contract With Customer Liability, Transaction Price From Contractual Obligations	$ 29,600	$ 16,870