Earnings Per Share (EPS Computations) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Less: Earnings allocated to unvested restricted stock	$ 5,525	$ 577	$ 7,725	$ 11,964
Income attributable to common stockholders	(14)	(3)	(23)	(52)
Income attributable to common stockholders	$ 5,511	$ 574	$ 7,702	$ 11,912
Denominator [Abstract]
Denominator for basic earnings per common share - weighted average shares outstanding	17,895,000	17,737,000	17,853,000	17,917,000
Effect of dilutive securities, share options (in shares)	34,000	31,000	39,000	34,000
Effect of dilutive securities, Convertible junior subordinated debentures (in shares)	3,000	0	1,000	0
Weighted average number of common and common equivalent shares outstanding for diluted EPS computation	17,932,000	17,768,000	17,893,000	17,951,000
Basic and Diluted earnings per common share:
Continuing operations (in dollars per Share)	$ 0.31	$ 0.03	$ 0.43	$ 0.66
Continuing operations (in dollars per Share)	$ 0.31	$ 0.03	$ 0.43	$ 0.66
Stock Options
Basic and Diluted earnings per common share:
Antidilutive securities excluded from computation of diluted EPS	765,722	900,856	848,513	974,290
Performance Shares [Member]
Basic and Diluted earnings per common share:
Antidilutive securities excluded from computation of diluted EPS	359,137		359,137
Convertible Debt Securities [Member]
Basic and Diluted earnings per common share:
Antidilutive securities excluded from computation of diluted EPS	1,000	3,000