Loans and Leases - Major classifications of LHFI (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2015	Dec. 31, 2014
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	$ 397,176	$ 471,216	$ 415,132
Proceeds from sales of loans and leases	3,838
Commercial real estate [Member]
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	164,522	210,883	175,038
Construction and land development [Member]
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	41,676	38,864	45,662
Commercial and industrial [Member]
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	70,743	82,414	76,489
Multi-family [Member]
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	16,893	15,222	13,823
Residential real estate [Member]
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	44,261	54,025	42,992
Leases [Member]
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	48,588	61,954	51,583
Tax certificates [Member]
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	8,230	5,294	7,191
Consumer [Member]
Major classifications of loans held for investment [Abstract]
Total LHFI, net of unearned income	$ 2,263	$ 2,560	$ 2,354