Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement [Abstract]
PATIENT REVENUES, net	$ 574,794	$ 426,063	$ 387,595
EXPENSES:
Operating	458,122	342,932	311,035
Lease and rent expense	54,988	33,364	28,690
Professional liability	10,764	8,456	8,122
General and administrative	33,311	30,271	24,793
Depreciation and amortization	10,902	8,292	7,524
Lease termination costs (receipts)	(180)	2,008	0
Total expenses	567,907	425,323	380,164
OPERATING INCOME	6,887	740	7,431
OTHER INCOME (EXPENSE):
Equity in net income of investment in unconsolidated affiliate	0	273	339
Gain on bargain purchase	925	0	0
Gain on sale of investment in unconsolidated affiliate	733	1,366	0
Hurricane costs	(232)	0	0
Interest expense, net	(6,369)	(4,802)	(4,102)
Debt retirement costs	0	(351)	0
Total other income (expense)	(4,943)	(3,514)	(3,763)
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	1,944	(2,774)	3,668
BENEFIT (PROVISION) FOR INCOME TAXES	(6,743)	1,030	(916)
INCOME (LOSS) FROM CONTINUING OPERATIONS	(4,799)	(1,744)	2,752
LOSS FROM DISCONTINUED OPERATIONS:
Operating loss, net of income tax benefit of $43, $41 and $375, respectively	(28)	(67)	(1,128)
LOSS FROM DISCONTINUED OPERATIONS	(28)	(67)	(1,128)
NET INCOME (LOSS)	$ (4,827)	$ (1,811)	$ 1,624
Per common share – basic
Continuing operations (in dollars per share)	$ (0.76)	$ (0.28)	$ 0.45
Discontinued operations (in dollars per share)	(0.01)	(0.01)	(0.18)
Net income (loss) (in dollars per share)	(0.77)	(0.29)	0.27
Per common share – diluted
Continuing operations (in dollars per share)	(0.76)	(0.28)	0.44
Discontinued operations (in dollars per share)	(0.01)	(0.01)	(0.18)
Diluted net income (loss) per common share (in dollars per share)	(0.77)	(0.29)	0.26
DIVIDENDS DECLARED PER SHARE OF COMMON STOCK (in dollars per share)	$ 0.22	$ 0.22	$ 0.22
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	6,279	6,199	6,100
Diluted (in shares)	6,279	6,199	6,315