Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest and Dividend Income
Loans, including fees	$ 21,980	$ 25,109	$ 67,924	$ 74,132
Loans held-for-sale	95	47	241	100
Securities:
Taxable	1,458	2,296	5,315	6,933
Tax exempt	1,327	1,719	4,178	5,958
Dividends from FHLBC and FRBC stock	118	154	366	459
Interest bearing deposits with financial institutions	68	119	185	344
Total interest and dividend income	25,046	29,444	78,209	87,926
Interest Expense
Savings, NOW, and money market deposits	299	724	1,319	2,254
Time deposits	1,084	1,672	4,292	4,931
Securities sold under repurchase agreements	28	135	167	431
Other short-term borrowings	24	429	167	1,611
Junior subordinated debentures	285	933	1,932	2,791
Senior notes	673	682	2,019	2,026
Notes payable and other borrowings	144	89	439	312
Total interest expense	2,537	4,664	10,335	14,356
Net interest and dividend income	22,509	24,780	67,874	73,570
Provision for credit losses	300	550	10,413	1,450
Net interest and dividend income after provision for loan and lease losses	22,209	24,230	57,461	72,120
Noninterest Income
Mortgage servicing rights mark to market loss	(160)	(946)	(2,739)	(2,902)
Net gain on sales of mortgage loans	5,246	2,074	12,123	3,999
Securities gains (losses), net	(1)	3,463	(25)	4,476
Change in cash surrender value of BOLI	459	267	942	1,045
Death benefit realized on BOLI	(2)		57
Debit card interchange income	1,499	1,595	4,097	4,433
Other income	803	988	2,663	2,682
Total noninterest income	11,685	11,933	28,702	26,558
Noninterest Expense
Salaries and employee benefits	12,586	12,062	36,846	35,261
Occupancy, furniture and equipment	2,003	2,235	6,239	6,149
Computer and data processing	1,226	1,490	3,808	4,346
FDIC Insurance	191	(114)	403	176
General bank insurance	281	270	764	756
Amortization of core deposit intangible	122	157	374	410
Advertising expense	62	360	228	975
Debit card interchange expense	566	531	1,612	1,360
Legal fees	169	111	476	480
Other real estate expense, net	125	26	505	324
Other expense	2,935	2,826	8,909	9,037
Total noninterest expense	20,266	19,954	60,164	59,274
Income before income taxes	13,628	16,209	25,999	39,404
Provision for income taxes	3,363	4,036	6,221	9,485
Net income available to common stockholders	$ 10,265	$ 12,173	$ 19,778	$ 29,919
Basic earnings per share (in dollars per share)	$ 0.35	$ 0.41	$ 0.67	$ 1.00
Diluted earnings per share (in dollars per share)	0.34	0.40	0.65	0.98
Dividends declared per share (in dollars per share)	$ 0.01	$ 0.01	$ 0.03	$ 0.03
Deposit Account
Noninterest Income
Service charges on deposits	$ 1,322	$ 2,020	$ 4,168	$ 5,841
Trust Income
Noninterest Income
Service charges on deposits	1,506	1,730	4,702	4,955
Bank Servicing
Noninterest Income
Service charges on deposits	521	460	1,447	1,408
Secondary mortgage fees
Noninterest Income
Service charges on deposits	$ 492	$ 282	$ 1,267	$ 621