CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest income:
Loans, including fees	$ 105,635	$ 86,346	$ 79,284
Securities, taxable	15,211	13,724	10,432
Securities, exempt from Federal tax	2,225	2,256	2,290
Other investments, interest-bearing deposits in other financial institutions and Federal funds sold	6,774	4,585	2,425
Total interest income	129,845	106,911	94,431
Interest expense:
Deposits	5,506	3,991	3,199
Subordinated debt	2,314	1,394
Short-term borrowings	2	2	12
Total interest expense	7,822	5,387	3,211
Net interest income before provision for loan losses	122,023	101,524	91,220
Provision for loan losses	7,421	99	1,237
Net interest income after provision for loan losses	114,602	101,425	89,983
Noninterest income:
Service charges and fees on deposit accounts	4,113	3,231	3,116
Increase in cash surrender value of life insurance	1,045	1,666	1,747
Servicing income	709	973	1,398
Gain on sales of SBA loans	698	1,108	796
Gain (loss) on sales of securities	266	(6)	1,099
Gain on proceeds from company-owned life insurance			1,119
Other	2,743	2,640	2,350
Total noninterest income	9,574	9,612	11,625
Noninterest expense:
Salaries and employee benefits	43,762	35,719	33,386
Occupancy and equipment	5,411	4,578	4,378
Professional fees	1,969	2,982	3,471
Other	24,379	17,459	16,404
Total noninterest expense	75,521	60,738	57,639
Income before income taxes	48,655	50,299	43,969
Income tax expense	13,324	26,471	16,588
Net income	35,331	23,828	27,381
Dividends on preferred stock			(1,512)
Net income available to common shareholders	35,331	23,828	25,869
Undistributed earnings allocated to Series C preferred stock			(1,278)
Distributed and undistributed earnings allocated to common shareholders	$ 35,331	$ 23,828	$ 24,591
Earnings per common share:
Basic (in dollars per share)	$ 0.85	$ 0.63	$ 0.72
Diluted (in dollars per share)	$ 0.84	$ 0.62	$ 0.72