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Loans and Allowance for loan losses (Loans On Non-Accrual Status) (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | $ 3,406 | $ 3,506
Commercial [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | 483 | 1,965
Commercial Mortgages-Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | 799 | 212
Commercial Mortgages-Non-Owner Occupied [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | 514 | 70
Commercial Construction [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | 367 | $ 460
Consumer Unsecured [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | 31 |
Consumer Secured [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | 269 | $ 20
Residential Mortgages [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | 695 | 689
Residential Consumer Construction [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Financing Receivables on Non-Accrual Status | $ 248 | $ 90

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- Definition Recorded investment in financing receivables that are on nonaccrual status as of 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 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524 + Details
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