Note 10 - Leases - Maturity of Operating Lease Liabilities (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Lessee, Operating Lease, Liability, to be Paid, Year One	$ 331,000
Lessee, Operating Lease, Liability, to be Paid, Year Two	231,000
Lessee, Operating Lease, Liability, to be Paid, Year Three	66,000
2026 thru 2028	146,000
Total lease payments	774,000
Adjust to present value	(64,000)
Other Liabilities [Member]
Total operating lease liabilities	$ 710,000	$ 540,000