Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest income:
Loans (including fee income)	$ 35,770	$ 30,252	$ 71,383	$ 59,635
Mortgage-backed securities, CMOs and other asset-backed securities	3,825	3,898	7,549	7,715
U.S. GSE securities	243	301	522	601
State and municipal obligations	747	1,010	1,559	2,005
Corporate bonds	358	293	713	583
Deposits with banks	106	71	196	117
Other interest and dividend income	502	409	993	795
Total interest income	41,551	36,234	82,915	71,451
Interest expense:
Savings, NOW and money market deposits	3,438	1,812	5,952	3,363
Certificates of deposit of $100,000 or more	582	431	1,099	810
Other time deposits	493	179	688	357
Federal funds purchased and repurchase agreements	57	355	1,172	671
Federal Home Loan Bank advances	1,917	1,529	3,266	2,678
Subordinated debentures	1,135	1,135	2,270	2,270
Junior subordinated debentures				48
Total interest expense	7,622	5,441	14,447	10,197
Net interest income	33,929	30,793	68,468	61,254
Provision for loan losses	400	950	1,200	1,750
Net interest income after provision for loan losses	33,529	29,843	67,268	59,504
Non-interest (loss) income:
Service charges and other fees	$ 2,562	$ 2,220	$ 4,725	$ 4,270
Type of Revenue [Extensible List]	us-gaap:DepositAccountMember	us-gaap:DepositAccountMember	us-gaap:DepositAccountMember	us-gaap:DepositAccountMember
Net securities losses	$ (7,921)		$ (7,921)
Title fee income	450	$ 541	955	$ 1,091
Gain on sale of loans	322		322
Gain on sale of Small Business Administration loans	691	799	1,062	1,342
BOLI income	555	567	1,101	1,127
Other operating income	763	382	1,291	801
Total non-interest (loss) income	(2,578)	4,509	1,535	8,631
Non-interest expense:
Salaries and employee benefits	13,055	11,592	25,867	23,092
Occupancy and equipment	3,205	3,439	6,448	6,837
Technology and communications	1,568	1,390	3,211	2,725
Marketing and advertising	1,240	1,577	2,202	2,488
Professional services	881	642	2,093	1,423
FDIC assessments	436	332	900	643
Amortization of other intangible assets	242	274	488	553
Other operating expenses	1,880	1,760	3,896	3,541
Total non-interest expense	22,507	21,006	45,105	41,302
Income before income taxes	8,444	13,346	23,698	26,833
Income tax expense	1,701	4,505	4,882	8,821
Net income	$ 6,743	$ 8,841	$ 18,816	$ 18,012
Basic earnings per share (in dollars per share)	$ 0.34	$ 0.45	$ 0.95	$ 0.91
Diluted earnings per share (in dollars per share)	$ 0.34	$ 0.45	$ 0.95	$ 0.91