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Note 8 - Loans and Related Allowance for Loan and Lease Losses - Major Classifications of Net Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Loans	$ 1,004,484	$ 992,109
Less: Allowance for loan and lease losses	(7,206)	(7,428)	$ (7,551)	$ (7,190)
Net loans	997,278	984,681
Commercial And Industrial [Member]
Loans	85,756	83,857
Less: Allowance for loan and lease losses	(586)	(969)	(1,256)	(999)
Real Estate Construction Porfolio Segment [Member]
Loans	58,019	56,731
Less: Allowance for loan and lease losses	(748)	(100)	(92)	(313)
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans	340,483	336,487
Less: Allowance for loan and lease losses	(1,623)	(1,581)	(1,782)	(1,760)
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans	504,289	498,247
Less: Allowance for loan and lease losses	(4,161)	(4,651)	(4,323)	(4,036)
Consumer Portfolio Segment [Member]
Loans	15,937	16,787
Less: Allowance for loan and lease losses	$ (88)	$ (127)	$ (98)	$ (82)

X

- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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- Definition

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

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Amount after allowance and 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 and loans held for sale.

+ References

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-Section S99
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