Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001642081 (http://www.sec.gov/CIK)

Income Tax Disclosure [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Income Tax Disclosure [Abstract]
Schedule of Components of Provision for Federal Income Taxes	The components of the provision for federal income taxes are as follows:   Years Ended December 31,   2016   2015   2014   (Dollars in thousands) Current $ 11,162   $ 8,221   $ 4,551 Deferred (1,608 )   (446 )   277 Total $ 9,554   $ 7,775   $ 4,828
Schedule of Effective Income Tax Rate Reconciliation	Reported income tax expense differs from the amounts computed by applying the U.S. federal statutory income tax rate of 35% to income before income taxes for the years ended December 31, 2016, 2015 and 2014 due to the following:   Years Ended December 31,   2016   2015   2014   (Dollars in thousands) Taxes calculated at statutory rate $ 11,342   $ 8,247   $ 4,685 Increase (decrease) resulting from:           Qualified stock options 67   393   180 Merger related expenses —   —   192 Tax exempt income (1,929 )   (890 )   (154 ) Other, net 74   25   (75 ) Total $ 9,554   $ 7,775   $ 4,828
Schedule of Deferred Tax Assets and Liabilities	Deferred tax assets and liabilities are as follows:   As of December 31,   2016   2015   (Dollars in thousands) Deferred tax assets:       Allowance for credit losses $ 6,938   $ 5,252 Net unrealized loss on available for sale securities 1,642   — Deferred compensation 168   210 Total deferred tax assets 8,748   5,462         Deferred tax liabilities:       Core deposit intangible and other purchase accounting adjustments (1,953 )   (1,713 ) Net unrealized gain on available for sale securities —   (1,086 ) Premises and equipment basis difference (568 )   (798 ) Total deferred tax liabilities (2,521 )   (3,597 ) Net deferred tax assets $ 6,227   $ 1,865