Loans and Leases - Risk Ratings for Each Loan Portfolio Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	$ 575,818	$ 499,103	$ 471,216
Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	253,074	225,679	210,883
Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	74,885	47,984	38,864
Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	106,254	85,980	82,414
Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	23,831	16,249	15,222
Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	49,061	51,588	54,025
Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	62,671	64,341	61,954
Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	3,803	4,755	5,294
Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	2,239	2,527	$ 2,560
Pass [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	452,035	400,393
Pass [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	216,295	191,320
Pass [Member] | Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	10,068	4,429
Pass [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	94,137	68,998
Pass [Member] | Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	17,373	15,982
Pass [Member] | Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	48,371	50,699
Pass [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	60,567	62,896
Pass [Member] | Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	3,058	3,630
Pass [Member] | Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	2,166	2,439
Pass Watch [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	116,534	90,049
Pass Watch [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	35,601	31,994
Pass Watch [Member] | Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	64,673	43,410
Pass Watch [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	9,426	13,971
Pass Watch [Member] | Multi-family [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	6,458	267
Pass Watch [Member] | Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	106
Pass Watch [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	197	319
Pass Watch [Member] | Consumer [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	73	88
Special Mention [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,106	1,104
Special Mention [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	346	870
Special Mention [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	329	195
Special Mention [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	431	39
Substandard [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,688	2,065
Substandard [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,688	2,065
Nonperforming Financing Receivable [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	4,455	5,492
Nonperforming Financing Receivable [Member] | Commercial real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	832	1,495
Nonperforming Financing Receivable [Member] | Construction and land development [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	144	145
Nonperforming Financing Receivable [Member] | Commercial and industrial [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	674	751
Nonperforming Financing Receivable [Member] | Residential real estate [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	584	889
Nonperforming Financing Receivable [Member] | Leases [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	1,476	1,087
Nonperforming Financing Receivable [Member] | Tax certificates [Member]
Risk Ratings for Each Loan Portfolio Segment [Abstract]
Total LHFI, net of unearned income	$ 745	$ 1,125