Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings per share basic and diluted [Abstract]
Net income applicable to common stock	$ 3,031	$ 3,189	$ 6,314	$ 6,309
Basic earnings per share computation [Abstract]
Weighted average common shares outstanding (in shares)	3,343,254	3,052,285	3,349,913	3,055,569
Earnings per share - basic (in dollars per share)	$ 0.91	$ 1.04	$ 1.88	$ 2.06
Diluted earnings per share computation [Abstract]
Weighted average common shares outstanding for basic earnings per share (in shares)	3,343,254	3,052,285	3,349,913	3,055,569
Add: Dilutive effects of restricted stock (in shares)	409	1,064	205	534
Weighted average common shares outstanding for dilutive earnings per share (in shares)	3,343,663	3,053,349	3,350,118	3,056,103
Earnings per share - diluted (in dollars per share)	$ 0.91	$ 1.04	$ 1.88	$ 2.06
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive restricted stock excluded from net income per share calculations (in shares)	4,521	3,287	4,521	3,287
Restricted Stock [Member] | Minimum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive stock share price range (in dollars per share)	$ 46.69	$ 44.50	$ 46.69	$ 44.50
Restricted Stock [Member] | Maximum [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive stock share price range (in dollars per share)	$ 53.15	$ 53.15	$ 53.15	$ 53.15