Note 4 - Loans (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Bank Overdrafts	$ 1,290		$ 1,290		$ 1,650
Deferred Loan Fees	4,110		4,110		5,060
Financing Receivable, Unamortized Purchase Premium (Discount)	(4,110)		(4,110)		(5,410)
Financing Receivable, Accrued Interest, after Allowance for Credit Loss	7,280		7,280		7,540
Financing Receivable, before Allowance for Credit Loss, Total	2,362,733		2,362,733		2,165,569
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Financing Receivable, before Allowance for Credit Loss, Total	148,024		148,024		112,988
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| SBA CARES Act Paycheck Protection Program [Member]
Financing Receivable, before Allowance for Credit Loss, Total	0		0		20,642
Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount), Total	0		0		$ 733
Amortization of Deferred Loan Origination Fees, Net	$ 80	$ 708	$ 734	$ 2,240

Represents deferred loan fees.

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The net increase(decrease) in interest income during the period representing the allocation of deferred loan origination fees less deferred loan origination costs using the effective interest method over the term of the debt arrangement to which they pertain taking into account the effect of prepayments.

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Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing.

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Amount, after allowance for credit loss, of accrued interest on financing receivable.

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Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

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Amount of unamortized purchase premium (discount) on financing receivable. Excludes financing receivable covered under loss sharing agreement.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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