Loans and Leases - Risk Ratings for Each Loan Portfolio Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	$ 447,647	$ 415,132	$ 377,791
Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	206,139	175,038	154,510
Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	33,786	45,662	41,180
Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	83,825	76,489	71,759
Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	16,172	13,823	13,336
Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	42,166	42,992	40,223
Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	58,090	51,583	45,925
Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	4,804	7,191	9,631
Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	2,665	2,354	$ 1,227
Pass [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	350,070	327,232
Pass [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	167,043	140,045
Pass [Member] | Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	3,900	12,861
Pass [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	58,698	60,500
Pass [Member] | Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	15,374	12,995
Pass [Member] | Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	41,231	42,033
Pass [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	57,496	51,113
Pass [Member] | Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	3,791	5,491
Pass [Member] | Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	2,537	2,194
Pass Watch [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	81,361	68,543
Pass Watch [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	35,440	27,229
Pass Watch [Member] | Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	29,342	32,165
Pass Watch [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	15,991	8,527
Pass Watch [Member] | Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	289	310
Pass Watch [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	171	152
Pass Watch [Member] | Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	128	160
Special Mention [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	7,138	4,639
Special Mention [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,705	2,512
Special Mention [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	4,839	1,608
Special Mention [Member] | Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	509	518
Special Mention [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	85	1
Substandard [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	3,694	4,905
Substandard [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	316	1,568
Substandard [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	3,378	3,337
Nonperforming Financing Receivable [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	5,384	9,813
Nonperforming Financing Receivable [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,635	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	544	636
Nonperforming Financing Receivable [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	919	2,517
Nonperforming Financing Receivable [Member] | Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	935	959
Nonperforming Financing Receivable [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	338	317
Nonperforming Financing Receivable [Member] | Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	$ 1,013	$ 1,700