CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest and dividend income:
Loans, including fees	$ 42,730	$ 34,844	$ 118,803	$ 100,655
Securities:
Taxable	1,418	606	3,322	2,615
Tax-exempt	51		138
Money market funds				34
Overnight deposits	666	299	1,453	2,266
Other interest and dividends	153	196	457	666
Total interest income	45,018	35,945	124,173	106,236
Interest expense:
Deposits	3,716	2,681	10,452	11,364
Borrowed funds		423		1,742
Trust preferred securities	105	112	320	461
Subordinated debt interest expense	405	405	1,214	1,214
Total interest expense	4,226	3,621	11,986	14,781
Net interest income	40,792	32,324	112,187	91,455
Provision for loan losses	490	1,137	3,315	7,693
Net interest income after provision for loan losses	40,302	31,187	108,872	83,762
Non-interest income:
Unrealized gain on equity securities	(9)		(45)	55
Gain on sale of securities			609	3,286
Total non-interest income	5,891	3,637	16,642	13,627
Non-interest expense:
Compensation and benefits	11,269	9,944	33,907	29,962
Bank premises and equipment	2,038	2,111	6,063	6,498
Professional fees	1,877	1,221	5,183	3,058
Licensing fees and technology costs	3,291	2,960	9,806	10,226
Other expenses	3,509	2,694	9,036	6,984
Total non-interest expense	21,984	18,930	63,995	56,728
Net income before income tax expense	24,209	15,894	61,519	40,661
Income tax expense	7,994	5,111	19,851	12,971
Net income	$ 16,215	$ 10,783	$ 41,668	$ 27,690
Earnings per common share:
Basic earnings per common share (in dollars per share)	$ 1.82	$ 1.30	$ 4.89	$ 3.34
Diluted earnings per common share (in dollars per share)	$ 1.77	$ 1.27	$ 4.76	$ 3.27
Service charges on deposit accounts
Non-interest income:
Non-interest income	$ 1,671	$ 863	$ 4,085	$ 2,747
Revenue, Product and Service [Extensible List]	Service charges on deposit accounts	Service charges on deposit accounts	Service charges on deposit accounts	Service charges on deposit accounts
Prepaid third-party debit card income.
Non-interest income:
Non-interest income	$ 3,615	$ 2,572	$ 10,509	$ 6,301
Revenue, Product and Service [Extensible List]	Prepaid third-party debit card income.	Prepaid third-party debit card income.	Prepaid third-party debit card income.	Prepaid third-party debit card income.
Other service charges and fees
Non-interest income:
Non-interest income	$ 614	$ 202	$ 1,484	$ 1,238
Revenue, Product and Service [Extensible List]	Other service charges and fees	Other service charges and fees	Other service charges and fees	Other service charges and fees