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Earnings Per Share Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Earnings Per Share [Abstract]                      
Income (Loss) from Continuing Operations Attributable to Parent $ 5,434,000 $ 5,367,000 $ 4,444,000 $ 4,557,000 $ 6,418,000 $ 4,565,000 $ 3,883,000 $ 1,631,000 $ 20,853,000 $ 15,446,000 $ 15,120,000
Earnings Allocated to Unvested Restricted Stock                 (257,000) (295,000) (314,000)
Income from Continuing Operations Less Earnings Allocated to Unvested Restricted Stock                 20,596,000 15,151,000 14,806,000
Income from discontinued operations                 0 392,000 4,176,000
Income attributable to discontinued operations                 0 (8,000) (85,000)
Income From Discontinued Operations Less Earnings Allocated to Unvested Restricted Stock                 $ 0 $ 384,000 $ 4,091,000
Discontinued operations                 $ 0 $ 0.00 $ 3,454,000.00
Adjustment for diluted earnings per share:                 $ 0.00 $ 0.00 $ 3,454,000.00
Income Attributable to Continuing Operations Diluted                 20,596,000 15,151,000 18,260,000
Income Attributable to Discontinuing Operations Diluted                 $ 0 $ 384,000 $ 4,091,000
Weighted Average Number of Shares Outstanding, Basic                 17,791 18,108 17,826
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units                 $ 246,000 $ 149,000 $ 175,000
Effect of Dilutive Securities, Convertible Junior Subordinating Debentures                 0 0 4,392
Weighted average number of common and common equivalent shares outstanding for diluted EPS computation                 18,313 18,257 22,393
Basic earnings per common share:                      
Basic earnings per share from continuing operations (in dollars per share)                 $ 1.16 $ 0.84 $ 0.83
Discontinued operations (in dollars per share)                 0.00 0.02 0.23
Basic earnings per common share (in dollars per share) $ 0.32 $ 0.29 $ 0.25 $ 0.25 $ 0.35 $ 0.27 $ 0.18 $ 0.12 1.16 0.86 1.06
Diluted earnings per common share:                      
Diluted earnings per share from continuing operations (in dollars per share)                 1.12 0.83 0.82
Discontinued operations (in dollars per share)                 0.00 0.02 0.18
Diluted earnings per common share (in dollars per share) $ 0.31 $ 0.29 $ 0.24 $ 0.24 $ 0.34 $ 0.26 $ 0.17 $ 0.12 $ 1.12 $ 0.85 $ 1.00