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Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Basic earnings per common share
Net income	$ 4,547	$ 4,192
Less: earnings allocated to participating securities	70	73
Basic earnings allocated to common shareholders	$ 4,477	$ 4,119
Weighted-average common shares outstanding, excluding participating securities	8,565,050	8,525,127
Basic earnings per common share	$ 0.52	$ 0.48
Diluted earnings per common share
Earnings allocated to common shareholders, diluted	$ 4,477	$ 4,119
Weighted-average common shares outstanding, excluding participating securities	8,565,050	8,525,127
Dilutive effect of share-based awards	0	4,531
Weighted-average diluted common shares outstanding, excluding participating securities	8,565,050	8,529,658
Diluted earnings per common share	$ 0.52	$ 0.48

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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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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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