Note 12 - Leases (Details Textual) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022	Dec. 31, 2021	[1]
Operating Lease, Right-of-Use Asset	$ 1,959,000	$ 1,959,000	$ 2,648,000
Operating Lease, Liability, Total	2,010,000	2,010,000
Finance Lease, Liability, Total	0	0
Operating Lease, Expense	$ 309,000	$ 936,000
Operating Lease, Weighted Average Remaining Lease Term (Year)	2 years 4 months 24 days	2 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	4.07%	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.