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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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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

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