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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Distributed earnings allocated to common shares	$ 522	$ 344	$ 1,008	$ 663
Undistributed earnings allocated to common shares	2,337	1,727	4,057	3,153
Net earnings allocated to common shares	2,859	2,071	5,065	3,816
Net earnings allocated to participating securities	4	2	7	6
Dividends on convertible preferred shares	244	244	488	488
Net Income allocated to common shares and participating securities	$ 3,107	$ 2,317	$ 5,560	$ 4,310
Weighted average shares outstanding for basic earnings per share	6,489	4,827	5,935	4,839
Dilutive effect of stock compensation	61	65	66	69
Dilutive effect of convertible shares	1,453	1,459	1,453	1,458
Weighted average shares outstanding for diluted earnings per share	8,003	6,351	7,454	6,366
Basic earnings per common share	$ 0.45	$ 0.43	$ 0.85	$ 0.79
Diluted earnings per common share	$ 0.40	$ 0.37	$ 0.75	$ 0.68

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