Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2020

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule of Compliance with Minimum Capital Requirements

As reflected in the following table, the Company met all minimum capital requirements at December 31, 2020 and 2019:

	2020		2019
Total capital to risk weighted assets	12.6	%	12.2	%
Tier 1 capital to risk weighted assets	10.0		9.6
Common Equity Tier 1 capital to risk weighted assets	8.8		9.2
Tier 1 Leverage Ratio	8.1		8.7

Actual Capital Amounts And Ratios

The banks’ actual capital amounts and ratios as of December 31, 2020 and 2019 are presented in the following table:

	December 31, 2020								December 31, 2019
	Actual				To Be Well Capitalized by Regulatory Definition				Actual				To Be Well Capitalized by Regulatory Definition
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to Risk Weighted Assets):
Lake Forest Bank	$	525,202	12.0	%	$	436,884	10.0	%	$	461,643	12.0	%	$	386,358	10.0	%
Hinsdale Bank	347,559		12.7		274,208		10.0		339,158		12.6		268,915		10.0
Wintrust Bank	808,451		11.6		697,039		10.0		709,328		11.8		602,969		10.0
Libertyville Bank	184,387		11.4		161,448		10.0		173,298		11.7		148,745		10.0
Barrington Bank	372,944		11.8		316,946		10.0		320,347		12.1		263,235		10.0
Crystal Lake Bank	127,621		11.4		111,594		10.0		124,373		12.1		102,488		10.0
Northbrook Bank	300,427		11.7		257,849		10.0		273,571		12.5		213,524		10.0
Schaumburg Bank	128,475		11.3		113,610		10.0		123,145		12.0		102,250		10.0
Village Bank	192,387		11.9		161,866		10.0		171,084		11.4		149,803		10.0
Beverly Bank	184,270		12.1		152,521		10.0		170,716		11.5		148,838		10.0
Town Bank	252,271		11.8		213,661		10.0		226,252		11.5		197,639		10.0
Wheaton Bank	213,784		11.4		186,919		10.0		187,518		11.4		165,019		10.0
State Bank of the Lakes	131,068		11.6		113,363		10.0		127,003		11.5		110,369		10.0
Old Plank Trail Bank	177,047		12.0		147,607		10.0		161,899		11.6		139,529		10.0
St. Charles Bank	165,876		12.0		138,774		10.0		156,023		11.7		133,119		10.0
Tier 1 Capital (to Risk Weighted Assets):
Lake Forest Bank	$	494,957	11.3	%	$	349,507	8.0	%	$	440,585	11.4	%	$	309,087	8.0	%
Hinsdale Bank	323,207		11.8		219,366		8.0		328,046		12.2		215,132		8.0
Wintrust Bank	728,787		10.5		557,631		8.0		668,922		11.1		482,375		8.0
Libertyville Bank	169,328		10.5		129,158		8.0		164,915		11.1		118,996		8.0
Barrington Bank	362,326		11.4		253,556		8.0		313,195		11.9		210,588		8.0
Crystal Lake Bank	118,085		10.6		89,275		8.0		119,374		11.7		81,991		8.0
Northbrook Bank	280,852		10.9		206,279		8.0		260,577		11.9		170,819		8.0
Schaumburg Bank	119,335		10.5		90,888		8.0		118,260		11.6		81,800		8.0
Village Bank	176,868		10.9		129,493		8.0		161,666		10.8		119,842		8.0
Beverly Bank	173,168		11.4		122,017		8.0		164,827		11.1		119,071		8.0
Town Bank	236,926		11.1		170,929		8.0		217,958		11.0		158,111		8.0
Wheaton Bank	199,134		10.7		149,535		8.0		181,195		11.0		132,015		8.0
State Bank of the Lakes	122,183		10.8		90,690		8.0		119,740		10.9		88,295		8.0
Old Plank Trail Bank	155,975		10.9		118,085		8.0		155,975		11.2		111,623		8.0
St. Charles Bank	153,704		11.1		111,019		8.0		151,665		11.4		106,495		8.0
Common Equity Tier 1 Capital (to Risk Weighted Assets):
Lake Forest Bank	$	494,957	11.3	%	$	283,975	6.5	%	$	440,585	11.4	%	$	251,133	6.5	%
Hinsdale Bank	323,207		11.8		178,235		6.5		328,046		12.2		174,795		6.5
Wintrust Bank	728,787		10.5		453,075		6.5		668,922		11.1		391,930		6.5
Libertyville Bank	169,328		10.5		104,941		6.5		164,915		11.1		96,684		6.5
Barrington Bank	362,326		11.4		206,015		6.5		313,195		11.9		171,102		6.5
Crystal Lake Bank	118,085		10.6		72,536		6.5		119,374		11.7		66,617		6.5
Northbrook Bank	280,852		10.9		167,602		6.5		260,577		11.9		138,791		6.5
Schaumburg Bank	119,335		10.5		73,846		6.5		118,260		11.6		66,463		6.5
Village Bank	176,868		10.9		105,213		6.5		161,666		10.8		97,372		6.5
Beverly Bank	173,168		11.4		99,139		6.5		164,827		11.1		96,745		6.5
Town Bank	236,926		11.1		138,880		6.5		217,958		11.0		128,465		6.5
Wheaton Bank	199,134		10.7		121,497		6.5		181,195		11.0		107,262		6.5
State Bank of the Lakes	122,183		10.8		73,686		6.5		119,740		10.9		71,740		6.5
Old Plank Trail Bank	155,975		10.9		95,944		6.5		155,975		11.2		90,694		6.5
St. Charles Bank	153,704		11.1		90,203		6.5		151,665		11.4		86,528		6.5

	December 31, 2020								December 31, 2019
	Actual				To Be Well Capitalized by Regulatory Definition				Actual				To Be Well Capitalized by Regulatory Definition
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio		Amount		Ratio
Tier 1 Leverage Ratio:
Lake Forest Bank	$	494,957	8.8	%	$	281,365	5.0	%	$	440,585	9.9	%	$	223,497	5.0	%
Hinsdale Bank	323,207		8.5		190,608		5.0		328,046		11.1		147,512		5.0
Wintrust Bank	728,787		8.8		412,878		5.0		668,922		10.3		324,017		5.0
Libertyville Bank	169,328		8.5		99,846		5.0		164,915		10.0		82,848		5.0
Barrington Bank	362,326		11.5		158,153		5.0		313,195		13.6		115,309		5.0
Crystal Lake Bank	118,085		9.0		65,329		5.0		119,374		10.2		58,613		5.0
Northbrook Bank	280,852		8.5		164,599		5.0		260,577		9.8		132,394		5.0
Schaumburg Bank	119,335		8.4		70,740		5.0		118,260		9.8		60,266		5.0
Village Bank	176,868		8.3		106,021		5.0		161,666		9.0		89,945		5.0
Beverly Bank	173,168		10.1		86,022		5.0		164,827		10.3		79,777		5.0
Town Bank	236,926		8.1		145,977		5.0		217,958		9.3		116,750		5.0
Wheaton Bank	199,134		7.7		128,592		5.0		181,195		9.2		98,039		5.0
State Bank of the Lakes	122,183		8.2		74,986		5.0		119,740		9.5		63,078		5.0
Old Plank Trail Bank	155,975		8.2		98,610		5.0		155,975		9.7		80,708		5.0
St. Charles Bank	153,704		8.8		87,849		5.0		151,665		10.1		74,348		5.0