Note 12 - Leases (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	[1]
Operating Lease, Right-of-Use Asset	$ 2,420,000	$ 2,648,000
Operating Lease, Liability, Total	2,473,000
Finance Lease, Liability, Total	0
Operating Lease, Expense	$ 279,000
Operating Lease, Weighted Average Remaining Lease Term (Year)	2 years 10 months 20 days
Operating Lease, Weighted Average Discount Rate, Percent	4.07%

[1] The condensed consolidated balance sheet as of December 31, 2021 has been prepared using information from the audited consolidated balance sheet as of that date.