Note 3 - Loans (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums, Total	$ 318	$ 274
Loans and Leases Receivable, Gross, Total	574,954	542,856	$ 530,933
Consumer and Other Loans [Member]
Loans and Leases Receivable, Gross, Total	16,130	16,886	$ 17,177
Consumer and Other Loans [Member] \| Demand Deposit Overdrafts [Member]
Loans and Leases Receivable, Gross, Total	$ 208	$ 275

Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant