Condensed Consolidated Statement of Changes in Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Unallocated Common Stock of ESOP [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2018	$ 67	$ 28,326	$ (2,433)	$ 34,995	$ (593)		$ 60,362
Balance (in shares) at Dec. 31, 2018	6,696,742
Net Income				249			249
ESOP shares committed to be released		3	32				35
Stock based compensation expense		77					77
Other comprehensive loss					437		437
Repurchase of common stock						$ (319)	(319)
Repurchase of common stock (in shares)	(29,436)
Balance at Mar. 31, 2019	$ 67	28,406	(2,401)	35,244	(156)	(319)	60,841
Balance (in shares) at Mar. 31, 2019	6,667,306
Balance at Dec. 31, 2019	$ 67	28,672	(2,303)	36,551	344	(1,461)	61,870
Balance (in shares) at Dec. 31, 2019	7,702,478
Conversion of FFBW, Inc. (net of costs of $1.2 million)	$ 10	41,561					41,571
Conversion of FFBW, Inc. (net of costs of $1.2 million) (in shares)	2,397
Purchase of 341,485 shares of ESOP			(3,814)				(3,814)
Treasury stock retired		(1,461)				$ 1,461
Contribution of FFBW, MHC		99					99
Net Income				407			407
ESOP shares committed to be released		(15)	76				61
Stock based compensation expense		87					87
Other comprehensive loss					727		727
Balance at Mar. 31, 2020	$ 77	$ 68,943	$ (6,041)	$ 36,958	$ 1,071		$ 101,008
Balance (in shares) at Mar. 31, 2020	7,704,875