Earnings (Loss) Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net income (loss)	$ 36,998	$ 16,098	$ (1,712)	$ 582	$ 53,096	$ (1,129)
Dividends on convertible preferred stock outstanding	(76)		(1,098)		(1,171)	(2,185)
Consideration paid in excess of preferred cost basis pursuant to the Conversion Agreement	(48,951)		0		(48,951)	0
Income allocated to participating securities	0		0		(264)	0
Net (loss) income available to common stockholders	$ (12,819)		$ (2,810)		$ 1,920	$ (3,314)
Denominator:
Denominator for basic earnings per share -- weighted-average shares	13,077,596		12,973,496		13,032,931	12,937,054
Effect of dilutive securities:
Denominator for diluted earnings per share -- adjusted weighted-average shares assumed conversion (in shares)	13,077,596		12,973,496		13,059,699	12,937,054
Basic (loss) earnings per share:
Continuing operations (in dollars per share)	$ (0.96)		$ (0.35)		$ 0.19	$ (0.33)
Discontinued operations (in dollars per share)	(0.02)		0.13		(0.04)	0.07
Basic loss per common share (in dollars per share)	(0.98)		(0.22)		0.15	(0.26)
Diluted (loss) earnings per share:
Continuing operations (in dollars per share)	(0.96)		(0.35)		0.19	(0.33)
Discontinued operations (in dollars per share)	(0.02)		0.13		(0.04)	0.07
Diluted earnings per common share (in dollars per share)	$ (0.98)		$ (0.22)		$ 0.15	$ (0.26)
Preferred Stock Conversion Agreement
Numerator:
Dividends paid pursuant to the Conversion Agreement	$ (790)		$ 0		$ (790)	$ 0
Common stock options
Effect of dilutive securities:
Common stock options (in shares)	0		0		10,347	0
Restricted stock
Effect of dilutive securities:
Common stock options (in shares)	0		0		16,421	0
Continuing operations
Numerator:
Net (loss) income available to common stockholders	$ (12,518)		$ (4,507)		$ 2,423	$ (4,280)
Discontinued operations
Numerator:
Net (loss) income available to common stockholders	$ (301)		$ 1,697		$ (503)	$ 966