Goodwill and Intangible Assets Reconciliation of Purchase Price to Goodwill (Details) - USD ($) $ in Thousands	Nov. 15, 2018	May 01, 2018
SCB Bancorp [Member]
Reconciliation of purchase price to goodwill recorded [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Securities	$ 97,504
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Repossessed Assets	438
Fair value of premises and equipment	(11,068)
Fair value of time deposits	347,971
FHLB advances	18,971
Junior subordinated debentures	0
Core deposit intangible	(7,269)
Customer list intangible	(12,298)
SCB Bancorp [Member] | Fair Value Adjustment [Member]
Reconciliation of purchase price to goodwill recorded [Line Items]
Goodwill Provisionally Recorded	18,600
Purchase price (in excess of net book value)	21,677
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Securities	41
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans, net	3,377
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Repossessed Assets	345
Fair value of premises and equipment	(953)
Fair value of time deposits	(343)
FHLB advances	(29)
Junior subordinated debentures	0
Core deposit intangible	(7,269)
Customer list intangible	(11,070)
Other assets	13,786
Business Combination, Net Fair Value Adjustments	(3,343)
Resulting goodwill from acquisition	$ 18,334
First BancTrust [Member]
Reconciliation of purchase price to goodwill recorded [Line Items]
Purchase price (in excess of net book value)		$ 26,946
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Securities		59,586
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Repossessed Assets		535
Fair value of premises and equipment		(9,437)
Fair value of time deposits		385,624
FHLB advances		30,672
Junior subordinated debentures		4,735
Core deposit intangible		(5,224)
Business Combination, Net Fair Value Adjustments		(455)
Resulting goodwill from acquisition		26,491
First BancTrust [Member] | Fair Value Adjustment [Member]
Reconciliation of purchase price to goodwill recorded [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Securities		320
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Loans, net		3,463
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Repossessed Assets		12
Business Combination, Recognized Identifiable Assets and Liabilities Assumed, Mortgage Servicing Rights		(1,097)
Fair value of premises and equipment		(689)
Fair value of time deposits		1,301
FHLB advances		(328)
Junior subordinated debentures		(1,451)
Core deposit intangible		(5,224)
Customer list intangible		5,224
Other assets		$ 1,860