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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Distributed earnings allocated to common shares	$ 524	$ 340	$ 1,532	$ 999
Undistributed earnings allocated to common shares	2,346	2,136	6,404	5,294
Net earnings allocated to common shares	2,870	2,476	7,939	6,293
Net earnings allocated to participating securities	4	3	11	9
Dividends on convertible preferred shares	244	244	732	731
Net Income allocated to common shares and participating securities	$ 3,118	$ 2,723	$ 8,679	$ 7,033
Weighted average shares outstanding for basic earnings per share	6,503	4,797	6,106	4,825
Dilutive effect of stock compensation	58	70	63	73
Dilutive effect of convertible shares	1,461	1,459	1,457	1,458
Weighted average shares outstanding for diluted earnings per share	8,022	6,326	7,626	6,356
Basic earnings per common share	$ 0.45	$ 0.52	$ 1.3	$ 1.31
Diluted earnings per common share	$ 0.39	$ 0.43	$ 1.14	$ 1.11

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