Loans - Troubled Debt Restructurings (Details) (USD $)	12 Months Ended
Dec. 31, 2014 contract	Dec. 31, 2013 contract
Financing Receivable, Modifications [Line Items]
Number of contracts	7	14
Pre-modification outstanding recorded investment	$ 1,650,000	$ 15,891,000
Recorded investment	1,073,000	9,423,000
Allowance for loan losses, troubled debt restructurings	21,000,000	3,700,000
Troubled debt restructuring, charge-offs	533,000	65,000
Troubled debt restructuring, payments received		4,800,000
Commercial & Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts	4	8
Pre-modification outstanding recorded investment	915,000	8,400,000
Recorded investment	353,000	5,587,000
Commerical real estate [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts	1	1
Pre-modification outstanding recorded investment	580,000	2,562,000
Recorded investment	570,000	2,526,000
Construction, land & land development [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts	1	3
Pre-modification outstanding recorded investment	30,000	4,783,000
Recorded investment	29,000	1,164,000
Consumer and other [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts	1	2
Pre-modification outstanding recorded investment	125,000	146,000
Recorded investment	$ 121,000	$ 146,000

Represents the payments received on loans classified as troubled debt restructurings during the period.

No definition available.

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- Definition

Amount of allowance for credit losses related to receivables which had been measured under a general allowance for credit losses methodology that are now identified as troubled debt restructurings.

+ References

No definition available.

+ Details

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- Definition

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=35738203&loc=SL6953676-111524

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

+ Details

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- Definition

The amount of the outstanding recorded investment related to 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 40

-Section 50

-Paragraph 4

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

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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

+ Details

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