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Earnings Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Basic earnings per common share
Net income	$ 3,760	$ 3,609	$ 3,133	$ 3,244	$ 2,529	$ 2,622	$ 1,565	$ 2,210	$ 13,746	$ 8,926
Less: earnings allocated to participating securities									331	329
Basic earnings allocated to common shareholders									13,415	8,597
Weighted-average common shares outstanding, excluding participating securities									3,832,296	2,608,961
Basic earnings per common share	$ 0.95	$ 0.92	$ 0.80	$ 0.83	$ 0.86	$ 0.99	$ 0.60	$ 0.84	$ 3.50	$ 3.30
Diluted earnings per common share
Earnings allocated to common shareholders									13,415	8,597
Reallocation of undistributed earnings									2	0
Diluted earnings allocated to common shareholders									$ 13,417	$ 8,597
Weighted-average common shares outstanding, excluding participating securities									3,832,296	2,608,961
Dilutive effect of share-based awards									15,314	1,911
Weighted-average diluted common shares outstanding, excluding participating securities									3,847,610	2,610,872
Diluted earnings per common share	$ 0.95	$ 0.91	$ 0.80	$ 0.83	$ 0.86	$ 0.99	$ 0.60	$ 0.84	$ 3.49	$ 3.29

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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