Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Earnings Per Share [Abstract]
Shares outstanding (weighted average) (in shares)	4,685,553	4,578,598
Shares held by Rabbi Trust (in shares)	96,736	0
Share liability under deferred compensation agreement (in shares)	(96,736)	0
Net earnings applicable to common stockholders	$ 2,011	$ 1,574
Net income applicable to common stockholders and assumed conversions	$ 2,011	$ 1,574
Basic earnings per share (in shares)	4,685,553	4,578,598
Unvested stock awards (in shares)	41,780	27,828
Diluted earnings per share (in shares)	4,727,333	4,606,426
Basic earnings per share (usd per share)	$ 0.43	$ 0.34
Diluted earnings per share (usd per share)	$ 0.43	$ 0.34
Shares of common stock outstanding not included in the computation of diluted EPS (in shares)	46,753	57,038