Fair Value Measurements (Details 2) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2015	Dec. 31, 2014
Quantitative Information about Level 3 Fair Value Measurements
Impaired loans	$ 23,283	$ 26,586
Non-recurring basis
Quantitative Information about Level 3 Fair Value Measurements
Impaired loans	953	2,129
Non-recurring basis \| Level 3
Quantitative Information about Level 3 Fair Value Measurements
Impaired loans	953	$ 2,129
Non-recurring basis \| Level 3 \| Appraisal of collateral \| Maximum
Quantitative Information about Level 3 Fair Value Measurements
Appraisal adjustments (as a percent)		100.00%
Non-recurring basis \| Level 3 \| Appraisal of collateral \| Weighted Average
Quantitative Information about Level 3 Fair Value Measurements
Appraisal adjustments (as a percent)		(54.30%)
Non-recurring basis \| Level 3 \| Appraisal of collateral \| Impaired loans
Quantitative Information about Level 3 Fair Value Measurements
Impaired loans	$ 953	$ 2,129
Non-recurring basis \| Level 3 \| Appraisal of collateral \| Impaired loans \| Minimum
Quantitative Information about Level 3 Fair Value Measurements
Appraisal adjustments (as a percent)	(5.20%)	(7.70%)
Non-recurring basis \| Level 3 \| Appraisal of collateral \| Impaired loans \| Maximum
Quantitative Information about Level 3 Fair Value Measurements
Appraisal adjustments (as a percent)	100.00%
Non-recurring basis \| Level 3 \| Appraisal of collateral \| Impaired loans \| Weighted Average
Quantitative Information about Level 3 Fair Value Measurements
Appraisal adjustments (as a percent)	(59.00%)
Non-recurring basis \| Level 3 \| Appraisal of collateral \| OREO(1) \| Maximum
Quantitative Information about Level 3 Fair Value Measurements
Impaired loans	$ 1
Appraisal adjustments (as a percent)	(100.00%)	(100.00%)
Non-recurring basis \| Level 3 \| Appraisal of collateral \| OREO(1) \| Weighted Average
Quantitative Information about Level 3 Fair Value Measurements
Appraisal adjustments (as a percent)	(100.00%)	(100.00%)

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- Definition

Percentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953550-111524

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