Earnings Per Share - Computation of earning per share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 30, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Net income	$ 1,462	$ 1,119	$ 1,141	$ 1,066	$ 1,110	$ 1,136	$ 1,188	$ 1,006	$ 4,788	$ 4,440
Allocated to preferred stock									(362)	(362)
Allocated to participating securities									(21)
Net income allocated to common shareholders									$ 4,405	$ 4,078
Weighted average common shares outstanding, gross									2,006,911	1,527,384
Less: Average participating securities									(9,196)
Weighted average common shares outstanding, net									1,997,715	1,527,384
Effect of diluted based awards									3,570	5,064
Weighted average shares and common stock equivalents									2,001,285	1,532,448
Basic (in dollars per share)	$ 0.55	$ 0.42	$ 0.68	$ 0.64	$ 0.67	$ 0.68	$ 0.72	$ 0.60	$ 2.21	$ 2.67
Diluted (in dollars per share)	$ 0.55	$ 0.42	$ 0.68	$ 0.63	$ 0.66	$ 0.68	$ 0.72	$ 0.60	$ 2.20	$ 2.66
Options excluded from the calculation due to their anti-dilutive effect on earnings per share									24,000	16,709