Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Interest and dividend income
Loans, including fees	$ 61,561	$ 38,229	$ 118,771	$ 74,595
Loans held-for-sale	19	32	31	89
Securities:
Taxable	9,930	6,786	20,665	11,954
Tax exempt	1,337	1,297	2,674	2,615
Dividends from FHLBC and FRBC stock	396	263	676	416
Interest bearing deposits with financial institutions	643	782	1,228	1,051
Total interest and dividend income	73,886	47,389	144,045	90,720
Interest expense
Savings, NOW, and money market deposits	1,742	347	2,891	744
Time deposits	1,156	265	1,820	542
Securities sold under repurchase agreements	7	9	16	20
Other short-term borrowings	5,160		7,505
Junior subordinated debentures	281	284	560	564
Subordinated debentures	546	547	1,092	1,093
Senior notes	1,414	578	2,408	1,063
Notes payable and other borrowings		95	87	198
Total interest expense	10,306	2,125	16,379	4,224
Net interest and dividend income	63,580	45,264	127,666	86,496
Provision for credit losses	2,000	550	5,501	550
Net interest and dividend income after provision for credit losses	61,580	44,714	122,165	85,946
Noninterest income
Mortgage servicing rights mark to market gain (loss)	96	82	(429)	3,060
Net gain (loss) on sales of mortgage loans	398	(262)	704	1,233
Securities losses, net	(1,547)	(33)	(3,222)	(33)
Change in cash surrender value of BOLI	418	72	660	196
Card related income	2,690	2,965	4,934	5,532
Other income	773	924	2,262	1,793
Total noninterest income	8,223	9,211	15,573	22,674
Noninterest expense
Salaries and employee benefits	21,798	21,332	44,046	41,299
Occupancy, furniture and equipment	3,639	3,046	7,114	6,745
Computer and data processing	1,290	4,006	3,064	10,274
FDIC insurance	794	702	1,378	1,112
Net teller & bill paying	515	834	1,017	2,741
General bank insurance	306	351	611	666
Amortization of core deposit intangible	618	659	1,242	1,324
Advertising expense	103	194	245	376
Card related expense	1,222	1,057	2,438	1,591
Legal fees	283	179	602	436
Consulting & management fees	520	523	1,310	1,139
Other real estate expense, net	(98)	87	208	75
Other expense	3,840	4,279	7,477	7,723
Total noninterest expense	34,830	37,249	70,752	75,501
Income before income taxes	34,973	16,676	66,986	33,119
Provision for income taxes	9,411	4,429	17,817	8,852
Net income	$ 25,562	$ 12,247	$ 49,169	$ 24,267
Basic earnings per share	$ 0.57	$ 0.28	$ 1.10	$ 0.55
Diluted earnings per share	0.56	0.27	1.08	0.54
Dividends declared per share	$ 0.05	$ 0.05	$ 0.10	$ 0.10
Wealth management
Noninterest income
Service charges on deposits	$ 2,458	$ 2,506	$ 4,728	$ 5,204
Service charges on deposits
Noninterest income
Service charges on deposits	2,362	2,328	4,786	4,402
Secondary mortgage fees
Noninterest income
Service charges on deposits	76	50	135	189
Mortgage servicing income
Noninterest income
Service charges on deposits	$ 499	$ 579	$ 1,015	$ 1,098