Earnings per Weighted Average Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
(Loss) Earnings attributable to common shareholders - basic and diluted:
Net (loss) income from continuing operations	$ (1,990)	$ 29,946
Allocation of loss (income) for participating shares	10	(167)
Net (loss) income from continuing operations attributed to common shareholders	$ (1,980)	$ 29,779
Total weighted average common shares outstanding, including participating shares	15,304,758	15,225,774
Less: weighted average participating shares	(73,974)	(84,970)
Basic (loss) earnings per share denominator	15,230,784	15,140,804
Common equivalent shares- non-vested performance stock grants	116,299	164,981
Diluted (loss) earnings per share denominator	15,347,083	15,305,785
Basic (loss) earnings per share (in dollars per share)	$ (0.13)	$ 1.97
Diluted (loss) earnings per share (in dollars per share)	(0.13)	1.95
Undistributed (loss) earnings attributable to common shareholders - basic and diluted:
Net (loss) income from continuing operations attributable to common shareholders -Basic	(0.13)	1.97
Dividends declared	(0.90)	(0.80)
Undistributed (loss) earnings	(1.03)	1.17
Undistributed (loss) earnings attributable to common shareholders - diluted
Net (loss) income from continuing operations attributable to common shareholders -Diluted	(0.13)	1.95
Dividends declared	(0.90)	(0.80)
Undistributed (loss) earnings	$ (1.03)	$ 1.15
Non Vested Performance Stock Grants
Undistributed (loss) earnings attributable to common shareholders - diluted
Antidilutive common shares	0	0