Business Combinations (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The following unaudited pro forma condensed combined financial information presents the results of operations of the Company, including the effects of the purchase accounting adjustments and acquisition expenses, had the Soy Capital Bank acquisition taken place at the beginning of the period (in thousands, except share data):



	Twelve months ended December 31,
	2018		2017
Net interest income	123,161		105,925
Provision for loan losses	8,667		7,462
Non-interest income	52,257		47,719
Non-interest expense	112,246		100,933
Income before income taxes	54,505		45,249
Income tax expense	12,711		16,352
Net income available to common stockholders	$	41,794	$	28,897

Earnings per share
Basic	$2.67		$2.08
Diluted	$2.67		$2.08

Basic weighted average shares outstanding	15,646,359		13,862,230
Diluted weighted average shares outstanding	15,659,818		13,867,105

Business Acquisition, Pro Forma Information [Table Text Block]



	Twelve months ended December 31,
	2018		2017
Net interest income	123,161		105,925
Provision for loan losses	8,667		7,462
Non-interest income	52,257		47,719
Non-interest expense	112,246		100,933
Income before income taxes	54,505		45,249
Income tax expense	12,711		16,352
Net income available to common stockholders	$	41,794	$	28,897

Earnings per share
Basic	$2.67		$2.08
Diluted	$2.67		$2.08

Basic weighted average shares outstanding	15,646,359		13,862,230
Diluted weighted average shares outstanding	15,659,818		13,867,105

First BancTrust [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

The following table summarizes the estimated fair values of assets acquired and liabilities assumed at the date of the First Bank acquisition (in thousands).



	Acquired Book Value			Adjustments			As Recorded by First Bank & Trust
Assets
Cash & due from banks	$	20,598					$	20,598
Investment Securities	59,906			(320		)	59,586
Loans	371,156			(7,875		)	363,281
Allowance for loan losses	(4,412		)	4,412			—
Other real estate owned	547			(12		)	535
Premises and equipment	10,126			(689		)	9,437
Goodwill	543			25,948			26,491
Core deposit intangible	—			5,224			5,224
Other assets	16,389			(256		)	16,133
Total assets acquired	$	474,853		$	26,432		$	501,285
Liabilities and Stockholders' Equity
Deposits	$	384,323		$	1,301		$	385,624
FHLB advances	31,000			(328		)	30,672
Subordinated debentures	6,186			(1,451		)	4,735
Other liabilities	8,665			(36		)	8,629
Total liabilities assumed	430,174			(514		)	429,660
Net assets acquired	$	44,679		$	26,946		$	71,625

Consideration Paid
Cash							$	10,275
Common stock							61,350
Total consideration paid							$	71,625

Business Acquisition, Pro Forma Information [Table Text Block]

The following unaudited pro forma condensed combined financial information presents the results of operations of the Company, including the effects of the purchase accounting adjustments and acquisition expenses, had the First Bank acquisition taken place at the beginning of the period (in thousands, except share data):



	Twelve months ended December 31,
	2018		2017
Net interest income	117,450		110,990
Provision for loan losses	8,867		8,365
Non-interest income	36,526		34,060
Non-interest expense	94,464		94,843
Income before income taxes	50,645		41,842
Income tax expense	12,456		15,849
Net income available to common stockholders	$	38,189	$	25,993

Earnings per share
Basic	$2.60		$1.83
Diluted	$2.59		$1.83

Basic weighted average shares outstanding	14,704,888		14,175,559
Diluted weighted average shares outstanding	14,721,708		14,180,434