Note 18 - Fair Value Measurements and Fair Value of Financial Instruments (Details Textual)	6 Months Ended	12 Months Ended
	Jun. 30, 2023 USD ($) $ / item	Dec. 31, 2022 USD ($)
Financing Receivables, Collateral Dependent, Write-down	$ 399,000
Write Down on Other Real Estate Owned	0	$ 0
Fair Value, Recurring [Member]
Assets, Fair Value Disclosure, Total	391,141,000	256,848,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, Fair Value Disclosure, Total	25,000	18,000
Measurement Input, Margin Cost Rate [Member] | Interest Rate Lock Contracts and Forward Mortgage Loan Sale Contracts [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative Asset	25,000	18,000
Unrealized Gain (Loss) on Derivatives	$ 7,000
Minimum [Member] | Interest Rate Lock Contracts and Forward Mortgage Loan Sale Contracts [Member]
Derivative, Buy Price (in USD per Per Share) | $ / item	98
Derivative, Sale Price (in USD per Per Share) | $ / item	98
Minimum [Member] | Measurement Input, Margin Cost Rate [Member] | Interest Rate Lock Contracts and Forward Mortgage Loan Sale Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative Asset, Measurement Input	0.0050
Maximum [Member] | Interest Rate Lock Contracts and Forward Mortgage Loan Sale Contracts [Member]
Derivative, Buy Price (in USD per Per Share) | $ / item	100
Derivative, Sale Price (in USD per Per Share) | $ / item	102
Maximum [Member] | Measurement Input, Margin Cost Rate [Member] | Interest Rate Lock Contracts and Forward Mortgage Loan Sale Contracts [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative Asset, Measurement Input	0.0100
Other Real Estate Owned [Member] | Minimum [Member] | Measurement Input, Comparability Adjustment [Member]
Alternative Investment, Measurement Input	0.05
Other Real Estate Owned [Member] | Maximum [Member] | Measurement Input, Comparability Adjustment [Member]
Alternative Investment, Measurement Input	0.06
Other Real Estate Owned [Member] | Single-Family Residences [Member]
Assets, Fair Value Disclosure, Total	$ 577,000	$ 577,000