Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Impaired Loans, Supplemental Schedule (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2019
Average Recorded Investment	$ 16,474	$ 16,773
Recognized Interest Income	294	611
Commercial Portfolio Segment [Member]
Average Recorded Investment	9,662	9,755
Recognized Interest Income	165	332
Commercial Real Estate Portfolio Segment [Member]
Average Recorded Investment	6,539	6,716
Recognized Interest Income	126	273
Residential Portfolio Segment [Member]
Average Recorded Investment	196	197
Recognized Interest Income	3	6
Consumer Portfolio Segment [Member]
Average Recorded Investment	77	105
Recognized Interest Income	$ 0	$ 0

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524

Name:	us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration