Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Patient revenues, net	$ 120,873	$ 118,630	$ 117,967	$ 117,550	$ 118,716	$ 119,036	$ 119,327	$ 119,043	$ 475,020	$ 476,122	$ 482,811
Professional liability expense	1,814	1,737	1,594	1,851	1,600	1,604	1,755	1,539	6,996	6,498	7,992
Loss from continuing operations	(1,368)	(1,916)	(22,616)	(1,574)	(2,687)	(7,512)	(327)	(738)	(27,474)	(11,264)	(9,748)
Income from discontinued operations	(1,879)	(2,958)	(1,980)	(1,772)	3,102	114	17	635	(8,589)	3,868	4,921
NET LOSS	$ (3,247)	$ (4,874)	$ (24,596)	$ (3,346)	$ 415	$ (7,398)	$ (310)	$ (103)	$ (36,063)	$ (7,396)	$ (4,827)
Basic net loss per common share
Income (loss) from continuing operations (in dollars per share)	$ (0.22)	$ (0.30)	$ (3.49)	$ (0.24)	$ (0.42)	$ (1.18)	$ (0.05)	$ (0.12)	$ (4.25)	$ (1.77)	$ (1.55)
Loss from discontinued operations (in dollars per share)	(0.29)	(0.45)	(0.31)	(0.28)	0.48	0.02	0.00	0.11	(1.33)	0.61	0.78
Net income (loss) (in dollars per share)	(0.51)	(0.75)	(3.80)	(0.52)	0.06	(1.16)	(0.05)	(0.01)	(5.58)	(1.16)	(0.77)
Diluted net loss per common share
Income (loss) from continuing operations (in dollars per share)	(0.22)	(0.30)	(3.49)	(0.24)	(0.42)	(1.18)	(0.05)	(0.12)	(4.25)	(1.77)	(1.55)
Loss from discontinued operations (in dollars per share)	(0.29)	(0.45)	(0.31)	(0.28)	0.48	0.02	0.00	0.11	(1.33)	0.61	0.78
Diluted net income (loss) per common share (in dollars per share)	$ (0.51)	$ (0.75)	$ (3.80)	$ (0.52)	$ 0.06	$ (1.16)	$ (0.05)	$ (0.01)	$ (5.58)	$ (1.16)	$ (0.77)
Valuation allowance			$ 20,000