Loans and Leases - Aging Analysis of Past Due Payments for Each Loan Portfolio Segment (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	$ 2,004,000		$ 2,054,000
60-89 Days Past Due	509,000		558,000
Accruing 90+Days	0		0
Total non-accrual loans	9,345,000		10,157,000
Current	346,800,000		353,712,000
Total LHFI, net of unearned income	358,658,000		366,481,000
Total non-accrual loans, Loan balance	9,345,000		10,157,000
Total non-accrual LHFI, Specific reserves	138,000		886,000
Period decrease in nonaccrual loans	812,000
Charge-offs related to specific reserves	1,200,000
Reduction in existing non accrual loan balances	1,000,000
Transfers to other real estate owned	672,000	1,956,000	9,051,000
Addition of non accrual loan balance	2,100,000
Interest income lost on non-accrual loans	275,000
Cash collected on non accrual and impaired loan	2,000,000	4,400,000
Amount credited to principal balance outstanding	1,700,000	4,200,000
Summary of impaired loans [Abstract]
Impaired loans with a valuation allowance	885,000		3,835,000
Impaired loans without a valuation allowance	16,013,000		14,671,000
Total impaired loans and leases	16,898,000		18,506,000
Valuation allowance related to impaired loans	138,000		886,000
Commercial Real Estate [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	977,000		996,000
60-89 Days Past Due	50,000		0
Accruing 90+Days	0		0
Total non-accrual loans	1,580,000		2,325,000
Current	147,504,000		144,972,000
Total LHFI, net of unearned income	150,111,000		148,293,000
Total non-accrual loans, Loan balance	1,580,000		2,325,000
Total non-accrual LHFI, Specific reserves	0		331,000
Summary of impaired loans [Abstract]
Valuation allowance related to impaired loans	0		331,000
Construction and Land Development [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	567,000		0
60-89 Days Past Due	0		0
Accruing 90+Days	0		0
Total non-accrual loans	2,318,000		2,650,000
Current	42,866,000		42,611,000
Total LHFI, net of unearned income	45,751,000		45,261,000
Total non-accrual loans, Loan balance	2,318,000		2,650,000
Total non-accrual LHFI, Specific reserves	0		0
Summary of impaired loans [Abstract]
Valuation allowance related to impaired loans	0		0
Commercial and Industrial [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	161,000		115,000
60-89 Days Past Due	0		49,000
Accruing 90+Days	0		0
Total non-accrual loans	2,937,000		3,629,000
Current	65,566,000		75,796,000
Total LHFI, net of unearned income	68,664,000		79,589,000
Total non-accrual loans, Loan balance	2,937,000		3,629,000
Total non-accrual LHFI, Specific reserves	0		452,000
Summary of impaired loans [Abstract]
Valuation allowance related to impaired loans	0		452,000
Residential real estate [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	184,000		458,000
60-89 Days Past Due	346,000		262,000
Accruing 90+Days	0		0
Total non-accrual loans	746,000		632,000
Current	25,189,000		24,183,000
Total LHFI, net of unearned income	26,465,000		25,535,000
Total non-accrual loans, Loan balance	746,000		632,000
Total non-accrual LHFI, Specific reserves	22,000		19,000
Summary of impaired loans [Abstract]
Valuation allowance related to impaired loans	22,000		19,000
Multi Family [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
Accruing 90+Days	0		0
Total non-accrual loans	0		0
Current	11,876,000		11,737,000
Total LHFI, net of unearned income	11,876,000		11,737,000
Total non-accrual loans, Loan balance	0		0
Leases [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	115,000		485,000
60-89 Days Past Due	90,000		247,000
Accruing 90+Days	0		0
Total non-accrual loans	627,000		467,000
Current	42,812,000		41,325,000
Total LHFI, net of unearned income	43,644,000		42,524,000
Total non-accrual loans, Loan balance	627,000		467,000
Total non-accrual LHFI, Specific reserves	116,000		60,000
Summary of impaired loans [Abstract]
Valuation allowance related to impaired loans	116,000		60,000
Tax Certificates [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	0		0
60-89 Days Past Due	0		0
Accruing 90+Days	0		0
Total non-accrual loans	1,137,000		454,000
Current	10,045,000		12,262,000
Total LHFI, net of unearned income	11,182,000		12,716,000
Total non-accrual loans, Loan balance	1,137,000		454,000
Total non-accrual LHFI, Specific reserves	0		24,000
Summary of impaired loans [Abstract]
Valuation allowance related to impaired loans	0		24,000
Consumer [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	0		0
60-89 Days Past Due	23,000		0
Accruing 90+Days	0		0
Total non-accrual loans	0		0
Current	942,000		826,000
Total LHFI, net of unearned income	965,000		826,000
Total non-accrual loans, Loan balance	$ 0		$ 0