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Earnings Per Share Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |  |  |
Income (Loss) from Continuing Operations Attributable to Parent | $ 4,127 | $ 5,683 | $ 5,200 | $ 4,571 | $ 5,434 | $ 4,444 | $ 4,557 | $ 6,418 | $ 19,581 | $ 20,853 | $ 15,446
Earnings Allocated to Unvested Restricted Stock |  |  |  |  |  |  |  |  | (89) | (257) | (295)
Income from Continuing Operations Less Earnings Allocated to Unvested Restricted Stock |  |  |  |  |  |  |  |  | 19,492 | 20,596 | 15,151
Income from discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | 392
Income attributable to discontinued operations |  |  |  |  |  |  |  |  | 0 | 0 | (8)
Income From Discontinued Operations Less Earnings Allocated to Unvested Restricted Stock |  |  |  |  |  |  |  |  | 0 | 0 | 384
Income Attributable to Continuing Operations Diluted |  |  |  |  |  |  |  |  | 19,492 | 20,596 | 15,151
Income Attributable to Discontinuing Operations Diluted |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 384
Weighted Average Number of Shares Outstanding, Basic |  |  |  |  |  |  |  |  | 16,515,000 | 17,791,000 | 18,108,000
Dilutive Securities, Effect on Basic Earnings Per Share, Options and Restrictive Stock Units |  |  |  |  |  |  |  |  | $ 454 | $ 246 | $ 149
Incremental common shares attributable to dilutive effect of conversion of debt securities |  |  |  |  |  |  |  |  | 491,000 | 276,000 | 0
Weighted average number of common and common equivalent shares outstanding for diluted EPS computation |  |  |  |  |  |  |  |  | 17,460,000 | 18,313,000 | 18,257,000
Basic earnings per common share: |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share from continuing operations (in dollars per share) |  |  |  |  |  |  |  |  | $ 1.18 | $ 1.16 | $ 0.84
Discontinued operations (in dollars per share) |  |  |  |  |  |  |  |  | 0.00 | 0.00 | 0.02
Basic earnings per common share (in dollars per share) | $ 0.25 | $ 0.34 | $ 0.31 | $ 0.27 | $ 0.32 | $ 0.25 | $ 0.25 | $ 0.35 | 1.18 | 1.16 | 0.86
Diluted earnings per common share: |  |  |  |  |  |  |  |  |  |  |
Diluted earnings per share from continuing operations (in dollars per share) |  |  |  |  |  |  |  |  | 1.12 | 1.12 | 0.83
Discontinued operations (in dollars per share) |  |  |  |  |  |  |  |  | 0.00 | 0.00 | 0.02
Diluted earnings per common share (in dollars per share) | $ 0.22 | $ 0.33 | $ 0.30 | $ 0.27 | $ 0.31 | $ 0.24 | $ 0.24 | $ 0.34 | $ 1.12 | $ 1.12 | $ 0.85

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