Earning Per Common Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Common Share [Abstract]
Income from continuing operations	$ 4,951	$ 2,979
Income from discontinued operations	(24)	390
Net income	$ 4,927	$ 3,369
Weighted average shares	10,158	10,090
Denominator for basic earnings per common share	10,158	10,090
Employee stock options	12	18
Other stock compensation plans	77	89
Dilutive potential common shares	89	107
Denominator for diluted earnings per common share - adjusted weighted average shares and assumed conversions	10,247	10,197
Basic earnings per common share: From continuing operations	$ 0.49	$ 0.30
Basic earnings per common share: From discontinued operations	$ 0.00	$ 0.04
Basic earnings per common share	$ 0.49	$ 0.33
Diluted earnings per common share: From continuing operations	$ 0.48	$ 0.29
Diluted earnings per common share: From discontinued operations	$ 0.00	$ 0.04
Diluted earnings per common share	$ 0.48	$ 0.33
Common Stock, Dividends, Per Share, Declared	$ 0.030	$ 0.025