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Loans - TDR's by Class and Specific Reserves (Details) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($) loan	Sep. 30, 2014 USD ($) loan	Dec. 31, 2014 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	88	96	94
Balance	$ 24,715	$ 27,877	$ 27,214
Specific Reserves	$ 524	$ 1,311	$ 868
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	16	20	19
Balance	$ 10,696	$ 12,809	$ 12,282
Specific Reserves	$ 69	$ 696	$ 267
Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	1	1	1
Balance	$ 788	$ 1,172	$ 1,172
Specific Reserves	$ 76	$ 204	$ 207
Commercial other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	13	16	15
Balance	$ 1,621	$ 2,092	$ 2,007
Specific Reserves	$ 1	$ 0	$ 0
Residential term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	53	54	54
Balance	$ 10,837	$ 10,978	$ 10,932
Specific Reserves	$ 378	$ 390	$ 373
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of Loans | loan	5	5	5
Balance	$ 773	$ 826	$ 821
Specific Reserves	$ 0	$ 21	$ 21

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 33



-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 40



-Section 50



-Paragraph 4



-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554

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