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Note 8 - Loans and Related Allowance for Loan and Lease Losses - Past Due Financing Receivables (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Loans, current balance | $ 925,411 | $ 915,131
Loans, past due | 6,963 | 8,082
Loans, total | 932,374 | 923,213
Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, past due | 3,821 | 5,501
Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, past due | 1,166 | 257
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, past due | 1,976 | 2,324
Commercial And Industrial [Member] |  |
Loans, current balance | 99,201 | 99,633
Loans, past due | 608 | 1,713
Loans, total | 99,809 | 101,346
Commercial And Industrial [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, past due | 175 | 1,607
Commercial And Industrial [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, past due | 366 | 29
Commercial And Industrial [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, past due | 67 | 77
Real Estate Construction Porfolio Segment [Member] |  |
Loans, current balance | 48,647 | 47,017
Loans, past due | 40 | 0
Loans, total | 48,687 | 47,017
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, past due | 40 | 0
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, past due | 0 | 0
Real Estate Construction Porfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, past due | 0 | 0
Real Estate Mortgage Portfolio Segment [Member] | Residential Loan [Member] |  |
Loans, current balance | 313,459 | 314,866
Loans, past due | 3,397 | 3,291
Loans, total | 316,856 | 318,157
Real Estate Mortgage Portfolio Segment [Member] | Commercial Loans [Member] |  |
Loans, current balance | 445,861 | 434,879
Loans, past due | 2,905 | 3,068
Loans, total | 448,766 | 437,947
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Residential Loan [Member] |  |
Loans, past due | 1,943 | 1,977
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial Loans [Member] |  |
Loans, past due | 1,652 | 1,907
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Residential Loan [Member] |  |
Loans, past due | 538 | 227
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial Loans [Member] |  |
Loans, past due | 260 | 1
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Residential Loan [Member] |  |
Loans, past due | 916 | 1,087
Real Estate Mortgage Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial Loans [Member] |  |
Loans, past due | 993 | 1,160
Consumer Portfolio Segment [Member] |  |
Loans, current balance | 18,243 | 18,736
Loans, past due | 13 | 10
Loans, total | 18,256 | 18,746
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member] |  |
Loans, past due | 11 | 10
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member] |  |
Loans, past due | 2 | 0
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] |  |
Loans, past due | $ 0 | $ 0

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- Definition Financing receivables that are current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=84173941&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 + Details
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