Loans and Asset Quality Information (Details 10) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	$ 38,785	$ 46,663
Imapired loans with no related allowance - Unpaid Principal Balance	53,313	69,129
Impaired loans with no related allowance - Average Recorded Investment	44,602	56,864
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment	32,778	44,112
Impaired loans with allowance - Unpaid Principal Balance	34,259	51,671
Impaired loans with related allowance - Related Allowance	4,992	5,692
Impaired loans with related allowance - Average Recorded Investment	35,417	38,349
Non-covered [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	24,341	17,605
Imapired loans with no related allowance - Unpaid Principal Balance	27,818	20,344
Impaired loans with no related allowance - Average Recorded Investment	21,410	17,649
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment	23,886	27,044
Impaired loans with allowance - Unpaid Principal Balance	24,153	29,304
Impaired loans with related allowance - Related Allowance	3,652	2,559
Impaired loans with related allowance - Average Recorded Investment	24,939	24,006
Non-covered [Member] | Commercial Unsecured [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Average Recorded Investment	22
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment	99	115
Impaired loans with allowance - Unpaid Principal Balance	100	115
Impaired loans with related allowance - Related Allowance	80	63
Impaired loans with related allowance - Average Recorded Investment	110	72
Non-covered [Member] | Commercial Secured [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	71
Imapired loans with no related allowance - Unpaid Principal Balance	74
Impaired loans with no related allowance - Average Recorded Investment	134	334
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment	509	392
Impaired loans with allowance - Unpaid Principal Balance	509	394
Impaired loans with related allowance - Related Allowance	210	64
Impaired loans with related allowance - Average Recorded Investment	494	1,081
Non-covered [Member] | Secured by Inventory and Accounts Receivable [Member]
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment		75
Impaired loans with allowance - Unpaid Principal Balance		75
Impaired loans with related allowance - Related Allowance		75
Impaired loans with related allowance - Average Recorded Investment	25	80
Non-covered [Member] | Real estate construction, land development other land loans [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	5,617	6,398
Imapired loans with no related allowance - Unpaid Principal Balance	6,116	6,907
Impaired loans with no related allowance - Average Recorded Investment	5,954	5,005
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment	1,924	1,629
Impaired loans with allowance - Unpaid Principal Balance	1,987	2,148
Impaired loans with related allowance - Related Allowance	818	544
Impaired loans with related allowance - Average Recorded Investment	1,705	2,339
Non-covered [Member] | Real estate residential, farmland and mutli-family [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	8,646	3,883
Imapired loans with no related allowance - Unpaid Principal Balance	9,665	4,429
Impaired loans with no related allowance - Average Recorded Investment	6,471	2,329
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment	13,859	15,228
Impaired loans with allowance - Unpaid Principal Balance	13,969	15,642
Impaired loans with related allowance - Related Allowance	2,016	1,162
Impaired loans with related allowance - Average Recorded Investment	14,438	13,417
Non-covered [Member] | Real estate home equity lines of credit [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	483
Imapired loans with no related allowance - Unpaid Principal Balance	498
Impaired loans with no related allowance - Average Recorded Investment	327
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment		22
Impaired loans with allowance - Unpaid Principal Balance		22
Impaired loans with related allowance - Related Allowance		1
Impaired loans with related allowance - Average Recorded Investment	7	637
Non-covered [Member] | Real estate commercial [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	9,514	7,324
Imapired loans with no related allowance - Unpaid Principal Balance	11,453	9,008
Impaired loans with no related allowance - Average Recorded Investment	8,495	9,981
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment	7,495	9,570
Impaired loans with allowance - Unpaid Principal Balance	7,588	10,873
Impaired loans with related allowance - Related Allowance	528	649
Impaired loans with related allowance - Average Recorded Investment	8,156	5,914
Non-covered [Member] | Consumer [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	10
Imapired loans with no related allowance - Unpaid Principal Balance	12
Impaired loans with no related allowance - Average Recorded Investment	7
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment		13
Impaired loans with allowance - Unpaid Principal Balance		35
Impaired loans with related allowance - Related Allowance		1
Impaired loans with related allowance - Average Recorded Investment	4	466
Covered [Member]
Loans with no related allowance recorded:
Impaired loans with no related allowance - Recorded Investment	14,444	29,058
Imapired loans with no related allowance - Unpaid Principal Balance	25,495	48,785
Impaired loans with no related allowance - Average Recorded Investment	23,192	39,215
Loans with an allowance recorded:
Impaired loans with allowance - Recorded Investment	8,892	17,068
Impaired loans with allowance - Unpaid Principal Balance	10,106	22,367
Impaired loans with related allowance - Related Allowance	1,340	3,133
Impaired loans with related allowance - Average Recorded Investment	$ 10,478	$ 14,343