No definition available.

Name:	us-gaap_DisaggregationOfRevenueAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

REVENUE RECOGNITION (Details) - USD ($)	3 Months Ended		6 Months Ended
REVENUE RECOGNITION (Details) - USD ($)	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Feb. 09, 2018	Nov. 02, 2015	Apr. 01, 2013
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue related to the various categories	$ 126,373,000	$ 115,098,000	$ 242,604,000	$ 223,440,000
Medicare Reimbursement [Abstract]
Federal debt ceiling in connection with deficit reductions			10 years
Reductions in federal spending			$ 1,200,000,000,000
Medicare spending cut percentage			2.00%
Expected reduction in Medicare spending percentage					2.00%	2.00%	2.00%
Combined physical therapy/speech language pathology expenses			$ 3,700
Reduction in combined physical therapy/speech language pathology expenses			$ 3,000
Percentage of practice expense component			100.00%
Percentage reduction for service			50.00%
Percentage of payment for outpatient therapy services			85.00%
Net patient revenue from Medicare accounts			$ 59,400,000	51,000,000
Contractual Allowances [Abstract]
Difference between net revenues and corresponding cash collections, approximately of net revenues			1.00%
Difference between actual aggregate contractual reserve and estimated contractual allowance reserve percentage			1.00%
Maximum contractual allowance reserve estimate			1.00%
Year 2017 [Member] \| Maximum [Member]
Medicare Reimbursement [Abstract]
Annual limit on physical therapy and speech language pathology services			$ 1,980
Annual limit occupational therapy services			$ 1,980
Year 2019 [Member]
Medicare Reimbursement [Abstract]
Percentage of increase in Medicare payment rates			0.25%
From 2019 through 2024 [Member]
Medicare Reimbursement [Abstract]
Percentage of bonus payment by APM			5.00%
From 2020 through 2025 [Member]
Medicare Reimbursement [Abstract]
Percentage of increase in Medicare payment rates			0.00%
Net Patient Revenues [Member]
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue related to the various categories	113,363,000	105,989,000	$ 220,013,000	206,541,000
Management Contract Revenues [Member]
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue related to the various categories	2,215,000	2,160,000	4,360,000	4,397,000
Industrial Injury Prevention Services Revenues [Member]
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue related to the various categories	10,288,000	6,274,000	17,188,000	11,126,000
Other Revenues [Member]
Revenue from Contract with Customer, Excluding Assessed Tax [Abstract]
Revenue related to the various categories	$ 507,000	$ 675,000	$ 1,043,000	$ 1,376,000