Note 5 - Loans and Leases (Details Textual) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)		Dec. 31, 2022 USD ($)
Financing Receivable, before Allowance for Credit Loss	$ 1,629,664	[1],[2]	$ 1,564,174	[3],[4]
Financing Receivable, Accrued Interest, after Allowance for Credit Loss	4,600		4,500
Loan, Managed and Securitized or Asset-Backed Financing Arrangement, Principal Outstanding	469,900		465,700
Servicing Asset	$ 1,500		1,600
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Positive Change In Collateral Value , Number of Loans	1
Financing Receivables, Modifications, Number of Contracts	0
Financing Receivables, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0
Financing Receivable, Unamortized Purchase Premium (Discount)	$ (7,369)		(9,064)
Financing Receivable, Unamortized Loan Cost (Fee)	4,919		4,630
Impaired Financing Receivable, Recorded Investment			3,868
Direct Financing Lease, Net Investment in Lease, before Allowance for Credit Loss	6,900		7,900
Direct Financing Lease, Residual Value of Leased Asset	25,600		23,600
Deferred Costs, Leasing, Net	242
Accrual [Member]
Financing Receivable, Modified, Accumulated			1,400
Nonaccrual [Member]
Impaired Financing Receivable, Recorded Investment			2,500
Financing Receivable, Modified, Accumulated			$ 200
Number of Loans Classified as Troubled Debt Restructuring			1
Consumer Portfolio Segment [Member]
Financing Receivable, before Allowance for Credit Loss	290,966	[1],[5]	$ 282,710	[3],[6]
Consumer Portfolio Segment [Member] | Direct Financing Lease [Member]
Financing Receivable, before Allowance for Credit Loss	32,806	[7]	31,477	[4],[6]
Financing Receivable, Unamortized Purchase Premium (Discount)	1,900		$ 1,700
Reclassified From Commercial and Industrial Loans to Other Loan Segments [Member]
Financing Receivable, before Allowance for Credit Loss	25,400
Reclassified From Commercial and Industrial Loans to Municipal Loans [Member]
Financing Receivable, before Allowance for Credit Loss	5,000
Reclassified From Commercial and Industrial Loans to Commercial Real Estate Non-owner Occupied Loans [Member]
Financing Receivable, before Allowance for Credit Loss	1,400
Reclassified From Commercial and Industrial Loans to Commercial Real Estate Owner Occupied Loans [Member]
Financing Receivable, before Allowance for Credit Loss	13,900
Reclassified From Commercial and Industrial Loans to Commercial Real Estate Construction Loans [Member]
Financing Receivable, before Allowance for Credit Loss	$ 5,100

[1] Includes $4.9 million of net deferred loan costs.

[2] Includes net deferred loan costs of $4.9 million.

[3] Includes $4.6 million of net deferred loan costs.

[4] Includes net deferred loan costs of $4.6 million.

[5] Net of unearned lease revenue of $1.9 million

[6] Net of unearned lease revenue of $1.7 million.

[7] Net of unearned lease revenue of $1.9 million.