Note 8 - Major Classes of Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	$ 804,308	$ 785,208
Net unearned costs	220	240
Loans receivable	804,528	785,448
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	165,381	162,452
Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	54,717	50,135
Commercial Portfolio Segment [Member] \| Secured by Commercial Real Estate [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	313,436	308,590
Commercial Portfolio Segment [Member] \| Secured by Residential Real Estate [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	72,211	68,581
State and Political Subdivisions Portfolio Segment [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	47,552	43,737
Retail Portfolio Segment [Member] \| Consumer Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	6,661	6,785
Retail Portfolio Segment [Member] \| Family Residential Mortgages [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	67,831	67,453
Retail Portfolio Segment [Member] \| Home Equity Loans and Lines [Member]
Accounts Notes And Loans Receivable [Line Items]
Loans and leases receivable	$ 76,519	$ 77,475

Net unearned costs on loans and leases receivable.

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- Definition

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+ References

No definition available.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

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