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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Distributed earnings allocated to common shares	$ 486	$ 319
Undistributed earnings allocated to common shares	1,720	1,427
Net earnings allocated to common shares	2,206	1,746
Net earnings allocated to participating securities	3	3
Dividends on convertible preferred shares	244	244
Net Income allocated to common shares and participating securities	$ 2,453	$ 1,993
Weighted average shares outstanding for basic earnings per share	5,519	4,855
Dilutive effect of stock compensation	72	74
Dilutive effect of convertible shares	1,464	1,458
Weighted average shares outstanding for diluted earnings per share	7,055	6,387
Basic earnings per common share	$ 0.4	$ 0.36
Diluted earnings per common share	$ 0.35	$ 0.31

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Dilutive effect of convertible shares.

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Net earnings allocated to common shares.

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Net earnings allocated to participating securities.

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Net income allocated to common shares and participating securities.

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The total amount of dividends declared in the period for each class of stock and the contractual amount of dividends (or interest on participating income bonds) that must be paid for the period (for example, unpaid cumulative dividends). Dividends declared in the current period do not include dividends declared in respect of prior-period unpaid cumulative dividends. Preferred dividends that are cumulative only if earned are deducted only to the extent that they are earned.

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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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The earnings that is allocated to common stock and participating securities to the extent that each security may share in earnings as if all of the earnings for the period had been distributed.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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