Fair Value Measurements (Details 5) - Significant Unobservable Inputs (Level 3) $ in Thousands	12 Months Ended
Dec. 31, 2017 USD ($)
Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Fair Value	$ 9,251
Valuation Technique	Appraised value of collateral less estimated costs to sell
Significant Unobservable Inputs	Estimated costs to sell
OREO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Fair Value	$ 7,392
Valuation Technique	Appraised value of property less estimated costs to sell
Significant Unobservable Inputs	Estimated costs to sell
Minimum \| Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Range of Inputs (percent)	4.00%
Minimum \| OREO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Range of Inputs (percent)	4.00%
Maximum \| Impaired loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Range of Inputs (percent)	10.00%
Maximum \| OREO
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Range of Inputs (percent)	10.00%

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- Definition

Weighted average expected volatility of stock price.

+ 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=66048111&loc=d3e19207-110258

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- Definition

Description of where the gains or losses, arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), are included in earnings or the statement of financial position.

+ 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 (c)(1)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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- Definition

Description of the inputs and valuation technique(s) used to measure fair value.

+ References

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- Definition

Aggregation of the liabilities reported on the balance sheet measured at fair value on a nonrecurring basis by the entity.

+ References

No definition available.

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