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Note 10 - Leases (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Operating Lease, Weighted Average Remaining Lease Term (Year) 10 years 11 months 1 day 11 years 2 months 1 day 10 years 11 months 1 day 11 years 2 months 1 day
Operating Lease, Weighted Average Discount Rate, Percent 3.27% 3.29% 3.27% 3.29%
Operating Lease, Cost $ 67,000 $ 63,000 $ 201,000 $ 159,000
Other Assets [Member]        
Operating Lease, Right-of-Use Asset 1,400,000 1,400,000 1,400,000 1,400,000
Other Liabilities [Member]        
Operating Lease, Liability, Total $ 1,478,000 $ 1,600,000 $ 1,478,000 $ 1,600,000