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Earnings Per Share (EPS Computations) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share [Abstract]        
Less: Earnings allocated to unvested restricted stock $ 2,747 $ 4,410 $ 12,103 $ 11,494
Income attributable to common stockholders (14) (15) (67) (43)
Income attributable to common stockholders $ 2,733 $ 4,395 $ 12,036 $ 11,451
Denominator [Abstract]        
Denominator for basic earnings per common share - weighted average shares outstanding 17,916,000 16,652,000 17,010,000 16,625,000
Effect of dilutive securities, Stock options (in shares) 212,000 377,000 240,000 381,000
Effect of dilutive securities, Convertible junior subordinated debentures (in shares) 117,000 1,064,000 674,000 1,077,000
Weighted average number of common and common equivalent shares outstanding for diluted EPS computation 18,245,000 18,093,000 17,924,000 18,083,000
Basic and Diluted earnings per common share:        
Continuing operations (in dollars per Share) $ 0.15 $ 0.26 $ 0.71 $ 0.69
Continuing operations (in dollars per Share) $ 0.15 $ 0.24 $ 0.67 $ 0.63
Antidilutive securities excluded from computation of diluted EPS 645,000 0 600,000 0