Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Interest and dividend income
Loans, including fees	$ 62,673	$ 57,210
Loans held-for-sale	14	12
Securities:
Taxable	8,092	10,735
Tax exempt	1,306	1,337
Dividends from FHLBC and FRBC stock	635	280
Interest bearing deposits with financial institutions	610	585
Total interest and dividend income	73,330	70,159
Interest expense
Savings, NOW, and money market deposits	4,037	1,149
Time deposits	4,041	664
Securities sold under repurchase agreements	86	9
Other short-term borrowings	4,557	2,345
Junior subordinated debentures	280	279
Subordinated debentures	546	546
Senior notes		994
Notes payable and other borrowings		87
Total interest expense	13,547	6,073
Net interest and dividend income	59,783	64,086
Provision for credit losses	3,500	3,501
Net interest and dividend income after provision for credit losses	56,283	60,585
Noninterest income
Mortgage servicing rights mark to market gain (loss)	94	(525)
Net gain on sales of mortgage loans	314	306
Securities gains (losses), net	1	(1,675)
Change in cash surrender value of BOLI	1,172	242
Card related income	2,376	2,244
Other income	1,030	1,489
Total noninterest income	10,501	7,350
Noninterest expense
Salaries and employee benefits	24,312	22,248
Occupancy, furniture and equipment	3,927	3,475
Computer and data processing	2,255	1,774
FDIC insurance	667	584
Net teller & bill paying	521	502
General bank insurance	309	305
Amortization of core deposit intangible	580	624
Advertising expense	192	142
Card related expense	1,277	1,216
Legal fees	226	319
Consulting & management fees	336	790
Other real estate expense, net	46	306
Other expense	3,593	3,637
Total noninterest expense	38,241	35,922
Income before income taxes	28,543	32,013
Provision for income taxes	7,231	8,406
Net income	$ 21,312	$ 23,607
Basic earnings per share	$ 0.48	$ 0.53
Diluted earnings per share	0.47	0.52
Dividends declared per share	$ 0.05	$ 0.05
Wealth management
Noninterest income
Service charges on deposits	$ 2,561	$ 2,270
Service charges on deposits
Noninterest income
Service charges on deposits	2,415	2,424
Secondary mortgage fees
Noninterest income
Service charges on deposits	50	59
Mortgage servicing income
Noninterest income
Service charges on deposits	$ 488	$ 516