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Note 4 - Loans and Related Allowance for Loan Losses (Details) - Past Due Financing Receivables - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, current balance | $ 529,146 | $ 465,164
Loans, past due | 4,564 | 5,420
Loans, total | 533,710 | 470,584
Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 1,912 | 2,471
Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 121 | 434
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 2,531 | 2,515
Commercial and Industrial [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, current balance | 41,544 | 34,480
Loans, past due | 992 | 448
Loans, total | 42,536 | 34,928
Commercial and Industrial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 225 | 349
Commercial and Industrial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 26 | 68
Commercial and Industrial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 741 | 31
Real Estate Construction Porfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, current balance | 22,137 | 30,296
Loans, past due | 0 | 0
Loans, total | 22,137 | 30,296
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 0 | 0
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 0 | 0
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 0 | 0
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, current balance | 229,725 | 205,753
Loans, past due | 2,753 | 4,343
Loans, total | 232,478 | 210,096
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 1,482 | 2,065
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 92 | 363
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 1,179 | 1,915
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, current balance | 230,903 | 190,088
Loans, past due | 798 | 597
Loans, total | 231,701 | 190,685
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 189 | 30
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 0 | 0
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 609 | 567
Consumer Portfolio Segment [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, current balance | 4,837 | 4,547
Loans, past due | 21 | 32
Loans, total | 4,858 | 4,579
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 16 | 27
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | 3 | 3
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Loans, past due | $ 2 | $ 2

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- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524 + Details
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- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524 + Details
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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 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=28367877&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=49124121&loc=d3e5074-111524 + Details
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