CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest income:
Loans, including fees	$ 133,169	$ 116,808	$ 105,635
Securities, taxable	11,637	15,836	15,211
Securities, exempt from Federal tax	1,908	2,148	2,225
Other investments, interest-bearing deposits in other financial institutions and Federal funds sold	3,757	7,867	6,774
Total interest income	150,471	142,659	129,845
Interest expense:
Deposits	6,260	8,159	5,506
Subordinated debt	2,320	2,686	2,314
Short-term borrowings	1	2	2
Total interest expense	8,581	10,847	7,822
Net interest income before provision for credit losses on loans	141,890	131,812	122,023
Provision for credit losses on loans	13,233	846	7,421
Net interest income after provision for credit losses on loans	128,657	130,966	114,602
Noninterest income:
Increase in cash surrender value of life insurance	1,845	1,404	1,045
Gain on sales of SBA loans	839	689	698
Servicing income	673	636	709
Gain on sales of securities	277	661	266
Other	2,638	2,344	2,743
Total noninterest income	9,922	10,244	9,574
Noninterest expense:
Salaries and employee benefits	50,927	50,754	43,762
Occupancy and equipment	8,018	6,647	5,411
Professional fees	5,338	3,259	1,969
Other	25,228	24,238	24,379
Total noninterest expense	89,511	84,898	75,521
Income before income taxes	49,068	56,312	48,655
Income tax expense	13,769	15,851	13,324
Net income	$ 35,299	$ 40,461	$ 35,331
Earnings per common share:
Basic (in dollars per share)	$ 0.59	$ 0.87	$ 0.85
Diluted (in dollars per share)	$ 0.59	$ 0.84	$ 0.84
Service charges and fees on deposit accounts
Noninterest income:
Non-interest income	$ 2,859	$ 4,510	$ 4,113
Revenue, Product and Service [Extensible List]	Service charges and fees on deposit accounts	Service charges and fees on deposit accounts	Service charges and fees on deposit accounts
Gain on the disposition of foreclosed assets
Noninterest income:
Non-interest income	$ 791
Revenue, Product and Service [Extensible List]	Gain on the disposition of foreclosed assets	Gain on the disposition of foreclosed assets	Gain on the disposition of foreclosed assets