Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Shares outstanding (weighted average) (in shares)	5,953,333	4,646,690	5,158,842	4,605,399
Shares held by Rabbi Trust (in shares)	(92,885)	0	(92,885)	0
Share liability under deferred compensation agreement (in shares)	92,885	0	92,885	0
Net earnings applicable to common stockholders	$ 1,963	$ 1,317	$ 5,178	$ 4,000
Net income applicable to common stockholders and assumed conversions	$ 1,963	$ 1,317	$ 5,178	$ 4,000
Basic earnings per share (in shares)	5,953,333	4,646,690	5,158,842	4,605,399
Unvested stock awards (in shares)	47,372	37,618	41,625	28,074
Diluted earnings per share (in shares)	6,000,705	4,684,308	5,200,467	4,633,473
Basic earnings per share (usd per share)	$ 0.33	$ 0.28	$ 1.00	$ 0.87
Diluted earnings per share (usd per share)	$ 0.33	$ 0.28	$ 1.00	$ 0.86
Shares of common stock outstanding not included in the computation of diluted EPS (in shares)	0	29,813	13,972	45,845