CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest income
Loans	$ 88,929	$ 73,718	$ 58,808
Investment securities	2,101	1,801	1,617
Federal funds sold and interest-bearing deposits with banks	1,622	1,138	784
Total interest income	92,652	76,657	61,209
Interest expense
Deposits	23,730	14,836	7,373
Borrowings	1,653	1,669	2,960
Total interest expense	25,383	16,505	10,333
Net interest income	67,269	60,152	50,876
Provision for loan losses	2,300	1,900	2,000
Net interest income after provision for loan losses	64,969	58,252	48,876
Noninterest income
Mortgage banking income	9,923	5,544	5,152
Service fees on deposit accounts	1,061	1,040	1,168
ATM and debit card income	1,728	1,490	1,172
Income from bank owned life insurance	1,001	878	811
Gain on sale of investment securities, net	727	7	4
Loss on extinguishment of debt	(1,496)
Other income	2,039	1,242	1,030
Total noninterest income	14,983	10,201	9,337
Noninterest expenses
Compensation and benefits	29,025	25,561	21,791
Occupancy	5,527	5,049	4,121
Outside service and data processing costs	4,187	3,302	3,158
Insurance	813	1,284	1,146
Professional fees	1,699	1,574	1,362
Marketing	941	856	737
Other	2,281	2,137	2,237
Total noninterest expenses	44,473	39,763	34,552
Income before income tax expense	35,479	28,690	23,661
Income tax expense	7,621	6,401	10,616
Net income available to common shareholders	$ 27,858	$ 22,289	$ 13,045
Earnings per common share
Basic	$ 3.70	$ 3.02	$ 1.86
Diluted	$ 3.58	$ 2.88	$ 1.76
Weighted average common shares outstanding
Basic	7,528,283	7,384,200	7,005,703
Diluted	7,772,544	7,737,495	7,393,377