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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Basic
Net income	$ 6,307	$ 5,833
Weighted-average common shares outstanding	11,124,250	11,233,558
Basic earnings per share	$ .57	$ .52
Diluted
Net Income	$ 6,307	$ 5,833
Weighted-average common shares outstanding	11,124,250	11,233,558
Effect of dilutive restricted stock and stock appreciation rights	166,671	153,299
Weighted-average common shares outstanding assuming dilution	11,290,921	11,386,857
Diluted earnings per share	$ .56	$ .51

X

- Definition

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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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