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Note 7 - Loans and Related Allowance for Loan and Lease Losses - Classes of the Loan Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Pass [Member] | Commercial And Industrial [Member]
Loans, total	$ 57,954	$ 40,560
Pass [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total	17,448	22,007
Pass [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	252,783	225,945
Pass [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	237,916	219,331
Pass [Member] | Consumer Portfolio Segment [Member]
Loans, total	4,723	4,854
Pass [Member]
Loans, total	540,188	512,697
Special Mention [Member] | Commercial And Industrial [Member]
Loans, total	445	242
Special Mention [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total	144
Special Mention [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	433	728
Special Mention [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	3,141	4,327
Special Mention [Member]
Loans, total	4,163	5,297
Substandard [Member] | Commercial And Industrial [Member]
Loans, total	977	1,734
Substandard [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total	24
Substandard [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	5,376	5,805
Substandard [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	4,579	8,043
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans, total	9	4
Substandard [Member]
Loans, total	11,325	15,586
Doubtful [Member] | Commercial And Industrial [Member]
Loans, total
Doubtful [Member] | Real Estate Construction Porfolio Segment [Member]
Loans, total	17	130
Doubtful [Member] | Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total
Doubtful [Member] | Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total
Doubtful [Member]
Loans, total	17	130
Commercial And Industrial [Member]
Loans, total	59,376	42,536
Real Estate Construction Porfolio Segment [Member]
Loans, total	17,633	22,137
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member]
Loans, total	258,952	232,478
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member]
Loans, total	245,636	231,701
Consumer Portfolio Segment [Member]
Loans, total	4,732	4,858
Loans, total	$ 586,329	$ 533,710

X

- 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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5074-111524

+ Details

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