Loans and Leases - Risk Ratings for Each Loan Portfolio Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	$ 471,216	$ 415,132	$ 397,176
Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	210,883	175,038	164,522
Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	38,864	45,662	41,676
Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	82,414	76,489	70,743
Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	15,222	13,823	16,893
Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	54,025	42,992	44,261
Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	61,954	51,583	48,588
Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	5,294	7,191	8,230
Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	2,560	2,354	$ 2,263
Pass [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	375,794	327,232
Pass [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	172,882	140,045
Pass [Member] | Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	5,305	12,861
Pass [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	62,930	60,500
Pass [Member] | Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	14,439	12,995
Pass [Member] | Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	53,107	42,033
Pass [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	60,576	51,113
Pass [Member] | Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	4,088	5,491
Pass [Member] | Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	2,467	2,194
Pass Watch [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	84,140	68,543
Pass Watch [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	35,298	27,229
Pass Watch [Member] | Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	33,269	32,165
Pass Watch [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	14,668	8,527
Pass Watch [Member] | Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	278	310
Pass Watch [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	534	152
Pass Watch [Member] | Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	93	160
Special Mention [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	3,402	4,639
Special Mention [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,340	2,512
Special Mention [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,449	1,608
Special Mention [Member] | Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	505	518
Special Mention [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	108	1
Substandard [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	2,782	4,905
Substandard [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	312	1,568
Substandard [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	2,470	3,337
Nonperforming Financing Receivable [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	5,098	9,813
Nonperforming Financing Receivable [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,051	3,684
Nonperforming Financing Receivable [Member] | Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	290	636
Nonperforming Financing Receivable [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	897	2,517
Nonperforming Financing Receivable [Member] | Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	918	959
Nonperforming Financing Receivable [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	736	317
Nonperforming Financing Receivable [Member] | Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	$ 1,206	$ 1,700