Note 4 - Premises and Equipment, Net (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Depreciation	$ 1,400,000	$ 1,500,000	$ 2,900,000	$ 3,100,000
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	5.80%		5.80%
Operating Lease, Expense	$ 500,000	$ 200,000	$ 900,000	$ 400,000
Premises and Equipment, Net [Member]
Operating Lease, Right-of-Use Asset	3,800,000		3,800,000		$ 3,500,000
Other Liabilities [Member]
Operating Lease, Liability	$ 3,750,000		$ 3,750,000		$ 3,500,000
Minimum [Member]
Lessee, Operating Lease, Renewal Term (Year)	3 years		3 years
Maximum [Member]
Lessee, Operating Lease, Renewal Term (Year)	5 years		5 years