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Business Combinations Pro Forma Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
SCB Bancorp [Member]
Business Acquisition [Line Items]
Business Acquisitions Pro Forma Net Interest Income	$ 33,435	$ 90,803
Business Acquisitions Pro Forma Provision For Loan Losses	2,551	5,483
Business Acquisitions Pro Forma Non-Interest Income	11,285	36,754
Business Acquisitions Pro Forma Non-Interest Expense	30,460	81,108
Business Acquisitions Pro Forma Income before Income Taxes	11,709	40,966
Business Acquisitions Pro Forma, Income Tax Expense	2,882	10,119
Business Acquisition, Pro Forma Net Income (Loss)	$ 8,827	$ 30,847
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 530	$ 2,010
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 530	$ 2,010
Weighted Average Basic Shares Outstanding, Pro Forma	16,621,110	15,312,910
Pro Forma Weighted Average Shares Outstanding, Diluted	16,636,789	15,329,730
First BancTrust [Member]
Business Acquisition [Line Items]
Business Acquisitions Pro Forma Net Interest Income	$ 30,087	$ 86,813
Business Acquisitions Pro Forma Provision For Loan Losses	2,551	5,683
Business Acquisitions Pro Forma Non-Interest Income	7,919	24,879
Business Acquisitions Pro Forma Non-Interest Expense	24,490	68,144
Business Acquisitions Pro Forma Income before Income Taxes	10,965	37,865
Business Acquisitions Pro Forma, Income Tax Expense	2,731	9,356
Business Acquisition, Pro Forma Net Income (Loss)	$ 8,234	$ 28,509
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 540	$ 1,940
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 540	$ 1,940
Weighted Average Basic Shares Outstanding, Pro Forma	15,290,539	14,704,888
Pro Forma Weighted Average Shares Outstanding, Diluted	15,306,218	14,721,708

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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