Loans and Leases - Non-Performing Loans and Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Non-Performing Loans and Leases [Line Items]
Nonaccrual Loans and Leases	$ 13,265	$ 14,183
Accruing Troubled Debt Restructured Loans And Lease Modifications	4,413	5,245
Recorded Investment 90 Days or more Past Due and Accruing Interest	748	379
Total Non-Performing Loans and Leases	18,426	19,807
Nonaccrual Troubled Debt Restructured Loans And Lease Modifications	1,400	93
Commercial, Financial and Agricultural [Member]
Non-Performing Loans and Leases [Line Items]
Nonaccrual Loans and Leases	5,463	6,915
Accruing Troubled Debt Restructured Loans And Lease Modifications	1,425	1,602
Recorded Investment 90 Days or more Past Due and Accruing Interest	0	0
Total Non-Performing Loans and Leases	6,888	8,517
Real Estate-Commercial [Member]
Non-Performing Loans and Leases [Line Items]
Nonaccrual Loans and Leases	3,960	4,314
Accruing Troubled Debt Restructured Loans And Lease Modifications	2,173	2,449
Recorded Investment 90 Days or more Past Due and Accruing Interest	0	0
Total Non-Performing Loans and Leases	6,133	6,763
Real Estate-Residential Secured for Business Purpose [Member]
Non-Performing Loans and Leases [Line Items]
Nonaccrual Loans and Leases	2,251	1,863
Accruing Troubled Debt Restructured Loans And Lease Modifications	815	763
Recorded Investment 90 Days or more Past Due and Accruing Interest	0	0
Total Non-Performing Loans and Leases	3,066	2,626
Real Estate-Residential Secured for Personal Purpose [Member]
Non-Performing Loans and Leases [Line Items]
Nonaccrual Loans and Leases	409	376
Accruing Troubled Debt Restructured Loans And Lease Modifications	0	421
Recorded Investment 90 Days or more Past Due and Accruing Interest	0	0
Total Non-Performing Loans and Leases	409	797
Real Estate-Home Equity Secured for Personal Purpose [Member]
Non-Performing Loans and Leases [Line Items]
Nonaccrual Loans and Leases	620	275
Accruing Troubled Debt Restructured Loans And Lease Modifications	0	0
Recorded Investment 90 Days or more Past Due and Accruing Interest	77	0
Total Non-Performing Loans and Leases	697	275
Loans to Individuals [Member]
Non-Performing Loans and Leases [Line Items]
Nonaccrual Loans and Leases	0	0
Accruing Troubled Debt Restructured Loans And Lease Modifications	0	0
Recorded Investment 90 Days or more Past Due and Accruing Interest	155	173
Total Non-Performing Loans and Leases	155	173
Lease Financings [Member]
Non-Performing Loans and Leases [Line Items]
Nonaccrual Loans and Leases	562	440
Accruing Troubled Debt Restructured Loans And Lease Modifications	0	10
Recorded Investment 90 Days or more Past Due and Accruing Interest	516	206
Total Non-Performing Loans and Leases	$ 1,078	$ 656