Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest income
Loans	$ 122,228	$ 99,082	$ 70,465
Securities – taxable	13,807	10,630	10,036
Securities – non-taxable	2,595	2,810	2,786
Other earning assets	8,784	2,945	1,410
Total interest income	147,414	115,467	84,697
Interest expense
Deposits	69,313	42,484	23,975
Other borrowed funds	15,134	10,716	6,740
Total interest expense	84,447	53,200	30,715
Net interest income	62,967	62,267	53,982
Provision for loan losses	5,966	3,892	4,872
Net interest income after provision for loan losses	57,001	58,375	49,110
Noninterest income
Noninterest income	11,541	5,718	7,836
Gain on sale of loans	2,074	503	395
Loss on sale of securities	(458)	0	(8)
Other	2,581	1,605	1,430
Total noninterest income	16,789	8,760	10,541
Noninterest expense
Salaries and employee benefits	27,014	23,174	21,164
Marketing, advertising and promotion	1,800	2,468	2,393
Consulting and professional fees	3,669	3,055	3,091
Data processing	1,338	1,233	971
Loan expenses	1,142	942	1,027
Premises and equipment	6,059	4,996	4,183
Deposit insurance premium	1,903	1,956	1,410
Write-down of other real estate owned	0	2,423	0
Other	3,709	2,936	2,484
Total noninterest expense	46,634	43,183	36,723
Income before income taxes	27,156	23,952	22,928
Income tax provision	1,917	2,052	7,702
Net income	$ 25,239	$ 21,900	$ 15,226
Income Per Share of Common Stock (in dollars per share)
Basic (in dollars per share)	$ 2.51	$ 2.31	$ 2.14
Diluted (in dollars per share)	$ 2.51	$ 2.30	$ 2.13
Weighted-average number of common shares outstanding
Basic (shares)	10,041,581	9,490,506	7,118,628
Diluted (shares)	10,044,483	9,508,653	7,149,302
Dividends Declared Per Share (in dollars per share)	$ 0.24	$ 0.24	$ 0.24
Service charges and fees
Noninterest income
Noninterest income	$ 885	$ 934	$ 888
Loan servicing revenue
Noninterest income
Noninterest income	166	0	0
Mortgage banking activities
Noninterest income
Noninterest income	$ 11,541	$ 5,718	$ 7,836