Loans - Impaired Loans Individually Evaluated (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
With an allowance recorded
Related allowance	$ 468	$ 4,335
Total
Recorded investment	7,101	15,432
Unpaid principal balance	7,106	15,434
Commercial & Industrial [Member]
With no related allowance recorded
Recorded investment	1,424	631
Unpaid principal balance	1,424	631
With an allowance recorded
Recorded investment	502	6,932
Unpaid principal balance	502	6,932
Related allowance	373	2,924
Total
Recorded investment	1,926	7,563
Unpaid principal balance	1,926	7,563
Real Estate Portfolio Segment [Member]
With an allowance recorded
Related allowance		133
Total
Recorded investment	4,925	6,421
Unpaid principal balance	4,929	6,423
Owner occupied commercial real estate [Member]
With no related allowance recorded
Recorded investment	173
Unpaid principal balance	173
Commerical real estate [Member]
With no related allowance recorded
Recorded investment	2,506	2,690
Unpaid principal balance	2,510	2,692
With an allowance recorded
Recorded investment		653
Unpaid principal balance		653
Related allowance		45
Construction, land & land development [Member]
With no related allowance recorded
Recorded investment	969	1,751
Unpaid principal balance	969	1,751
Residential mortgage [Member]
With no related allowance recorded
Recorded investment	1,277	1,213
Unpaid principal balance	1,277	1,213
With an allowance recorded
Recorded investment		114
Unpaid principal balance		114
Related allowance		88
Consumer and other [Member]
With no related allowance recorded
Recorded investment	155	170
Unpaid principal balance	156	170
With an allowance recorded
Recorded investment	95	1,278
Unpaid principal balance	95	1,278
Related allowance	95	1,278
Total
Recorded investment	250	1,448
Unpaid principal balance	$ 251	$ 1,448

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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.

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