Note 13 - Revenue (Details Textual) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2022
Deferred Revenue, Revenue Recognized	$ 382,000	$ 456,000

Amount of revenue recognized that was previously reported as deferred or unearned revenue.

No definition available.

Name:	us-gaap_DeferredRevenueRevenueRecognized1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration