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Earnings Per Share - Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Diluted Earnings Per share
Net income available to common shareholders	$ 6,087	$ 4,965	$ 11,303	$ 10,256
Weighted average shares outstanding (in shares)	13,533,724	13,692,358	13,515,752	13,681,229
Effect of dilutive stock options (in shares)	102,110	130,920	97,114	132,858
Weighted average shares of common stock and common stock equivalents (in shares)	13,635,834	13,823,278	13,612,866	13,814,087
Diluted earnings per share (in dollars per share)	$ 0.45	$ 0.36	$ 0.83	$ 0.74
Anti-dilutive options and restricted stock awards (in shares)	0	0	0	0

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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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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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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