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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share, Basic and Diluted [Abstract]
Net income available to common stockholders	$ 4,630	$ 2,572	$ 8,189	$ 4,453
Average common shares outstanding (shares)	17,634,190	18,330,972	17,782,063	18,784,934
Less:
Unearned ESOP shares (shares)	0	0	0	(298,813)
Unvested restricted stock shares (shares)	(375)	(940)	(656)	(940)
Weighted average common shares outstanding (shares)	17,633,815	18,330,032	17,781,407	18,485,181
Add - Net effect of dilutive stock options and unvested restricted stock	0	423	0	416
Weighted average diluted common shares outstanding (shares)	17,633,815	18,330,455	17,781,407	18,485,597
Basic earnings per common share (usd per share)	$ 0.26	$ 0.14	$ 0.46	$ 0.24
Diluted earnings per common share (usd per share)	$ 0.26	$ 0.14	$ 0.46	$ 0.24

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