Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Minimum period the individual is required to perform services to be fully vested under the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The amount of interest expense on prepetition obligations included in the statement of operations.

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The number of businesses acquired by the entity during the period.

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The number of states the entity operates in as of the balance sheet date.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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The amount of business acquisition cost of acquired entity debt issued on the date of acquisition.

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Business acquisition number of installments for payment of purchase consideration.

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The amount payable to shareholders of seller in business acquisition.

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Amount of business acquisition principal installments payable at cost of acquired by entity at accrued interest.

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Number of businesses merged during the period.

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Number of clinics operated during the period.

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Number of client locations that included in total operated states that are providing industrial injury prevention services.

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Number of regions of the entity operates.

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This element represents number of states of network services provided by the company.

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Number of third party facilities.

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Percentage of combined business interest owned during the period.

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Percentage of general partnership interest owned during the period.

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Percentage of limited partnership interest owned during the period.

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Refers to the commencement period of redemption rights for redeemable non controlling interest.

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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details)						1 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2019 USD ($) State Installment Clinic	Apr. 11, 2019 USD ($) State Location	Aug. 31, 2018 USD ($) Installment Clinic	Apr. 30, 2018 USD ($) Business	Feb. 28, 2018 Clinic	Mar. 31, 2017 USD ($)	Sep. 30, 2019 USD ($) State Installment Clinic Facility Region	Dec. 31, 2018 USD ($) Clinic	Sep. 30, 2018 USD ($)
Basis of Presentation [Abstract]
Cash paid for acquisition of interest in clinic							$ 5,700,000
Seller notes	$ 283,000			$ 950,000			$ 283,000		$ 0
Business acquisition number of installments for payment of purchase consideration \| Installment							2
Percentage of general partnership interest owned							1.00%
Number of clinic practices acquired \| Clinic			4		2			5
Number of clinics operated \| Clinic	574						574
Number of states where clinics are operated \| State	41						41
Number of third party facilities \| Facility							26
Goodwill [Abstract]
Number of regions \| Region							6
Income Taxes [Abstract]
Unrecognized tax benefit							$ 0
Accrued interest and penalties associated with any unrecognized tax benefits	$ 0						0
Interest expense recognized							0
Recently Adopted Accounting Guidance [Abstract]
Operating lease right-of-use assets	79,793,000						79,793,000	$ 0
Lease Liability	84,565,000						84,565,000
ASU 2016-02 [Member]
Recently Adopted Accounting Guidance [Abstract]
Operating lease right-of-use assets	78,000,000						78,000,000
Lease Liability	82,600,000						$ 82,600,000
April 2019 Acquisition [Member]
Basis of Presentation [Abstract]
Acquisition date							Apr. 11, 2019
Number of states of network services \| State		45
Number of onsite client locations \| Location		11
Percentage of interest acquired		76.00%
Aggregate purchase price for the acquired clinic practices		$ 23,600,000
Cash paid for acquisition of interest in clinic		19,600,000
Payable to shareholders of seller	$ 500,000	502,000					$ 500,000
Seller notes		$ 4,000,000
Percentage of interest accrued		5.50%
September 2019 Acquisition [Member]
Basis of Presentation [Abstract]
Acquisition date							Sep. 30, 2019
Percentage of interest acquired	67.00%						67.00%
Aggregate purchase price for the acquired clinic practices	$ 12,400,000
Cash paid for acquisition of interest in clinic	12,100,000
Seller notes	$ 300,000						$ 300,000
Percentage of interest accrued	5.00%						5.00%
Business acquisition number of installments for payment of purchase consideration \| Installment	2
Number of clinic practices acquired \| Clinic	11
September 2019 Acquisition [Member] \| September 2020 [Member]
Basis of Presentation [Abstract]
Acquisition cost payable in two principal installments including accrued interest	$ 150,000
September 2019 Acquisition [Member] \| September 2021 [Member]
Basis of Presentation [Abstract]
Acquisition cost payable in two principal installments including accrued interest	$ 150,000
August 2018 Acquisition [Member]
Basis of Presentation [Abstract]
Acquisition date							Aug. 31, 2018
Percentage of interest acquired			70.00%
Cash paid for acquisition of interest in clinic			$ 7,300,000
Seller notes			$ 400,000
Business acquisition number of installments for payment of purchase consideration \| Installment			2
Number of clinic practices acquired \| Clinic			4
August 2018 Acquisition [Member] \| August 2019 [Member]
Basis of Presentation [Abstract]
Cash paid for acquisition of interest in clinic			$ 200,000
August 2018 Acquisition [Member] \| August 2020 [Member]
Basis of Presentation [Abstract]
Acquisition cost payable in two principal installments including accrued interest			$ 200,000
March 2017 Acquisition [Member]
Basis of Presentation [Abstract]
Percentage of interest acquired						55.00%
Industrial Injury Prevention [Member]
Basis of Presentation [Abstract]
Percentage of interest acquired				65.00%		55.00%
Cash paid for acquisition of interest in clinic				$ 8,600,000		$ 6,200,000
Seller notes				$ 400,000		$ 400,000
Number of businesses merged \| Business				2
Percentage of combined business interest owned				59.45%
Employee [Member]
Restricted Stock [Abstract]
Period in which restrictions lapse on stock granted							4 years
Director [Member]
Restricted Stock [Abstract]
Period in which restrictions lapse on stock granted							1 year
Officer [Member]
Restricted Stock [Abstract]
Period in which restrictions lapse on stock granted							4 years
Minimum [Member]
Basis of Presentation [Abstract]
Percentage of limited partnership interest owned							49.00%
Redeemable Non-Controlling Interests [Abstract]
Redeemable non-controlling interest, redemption rights, commencement period							3 years
Minimum [Member] \| Furniture & Equipment [Member]
Long-Lived Assets [Abstract]
Estimated useful lives							3 years
Minimum [Member] \| Software [Member]
Long-Lived Assets [Abstract]
Estimated useful lives							3 years
Minimum [Member] \| Leasehold Improvements [Member]
Long-Lived Assets [Abstract]
Estimated useful lives							3 years
Maximum [Member]
Basis of Presentation [Abstract]
Percentage of limited partnership interest owned							99.00%
Redeemable Non-Controlling Interests [Abstract]
Redeemable non-controlling interest, redemption rights, commencement period							5 years
Maximum [Member] \| Furniture & Equipment [Member]
Long-Lived Assets [Abstract]
Estimated useful lives							8 years
Maximum [Member] \| Software [Member]
Long-Lived Assets [Abstract]
Estimated useful lives							7 years
Maximum [Member] \| Leasehold Improvements [Member]
Long-Lived Assets [Abstract]
Estimated useful lives							5 years