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ACQUISITIONS OF BUSINESSES (Details)								6 Months Ended		12 Months Ended
	Apr. 30, 2018 USD ($) Business	Feb. 28, 2018 USD ($) Clinic	Oct. 31, 2017 USD ($) Clinic Contract Installment	Jun. 30, 2017 USD ($) Clinic Installment	May 31, 2017 USD ($) Clinic Installment	Mar. 23, 2017 USD ($)	Jan. 01, 2017 USD ($) Clinic Installment	Jun. 30, 2018 USD ($) Clinic	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) Clinic	Dec. 31, 2016 USD ($)
Business Combination, Description [Abstract]
Number of clinics | Clinic		2						2		2
Number of clinics consolidated with an existing clinic | Clinic										1
Number of clinics that operate as a satellite clinic with existing partnerships | Clinic										1
Seller notes issued for acquisition of interest in clinic	$ 550,000									$ 2,150,000
Cash paid, net of cash acquired	9,118,000							$ 9,118,000	$ 33,665,000	36,682,000
Seller notes	550,000									2,150,000
Total consideration	9,668,000									38,832,000
Estimated fair value of net tangible assets acquired [Abstract]
Total current assets	1,232,000									5,850,000
Total non-current assets	17,000									1,434,000
Total liabilities	(74,000)									(2,922,000)
Net tangible assets acquired	1,175,000									4,362,000
Referral relationships	1,121,000									4,612,000
Non-compete	226,000									736,000
Tradename	1,475,000									6,228,000
Goodwill	10,534,000									47,059,000
Fair value of non-controlling interest (classified as redeemable non-controlling interests)	(4,863,000)									(13,883,000)
Fair value of non-controlling interest (originally classified as mandatorily redeemable non-controlling interests)										(10,282,000)
Total consideration	$ 9,668,000									$ 38,832,000
Referral Relationships [Member] | Minimum [Member]
Business Combination, Description [Abstract]
Estimated useful lives of acquired intangibles								7 years 6 months
Referral Relationships [Member] | Maximum [Member]
Business Combination, Description [Abstract]
Estimated useful lives of acquired intangibles								11 years
Non-compete Agreements [Member] | Minimum [Member]
Business Combination, Description [Abstract]
Estimated useful lives of acquired intangibles								5 years
Non-compete Agreements [Member] | Maximum [Member]
Business Combination, Description [Abstract]
Estimated useful lives of acquired intangibles								6 years
Acquisition Of Two Clinic Practices [Member]
Business Combination, Description [Abstract]
Number of clinics | Clinic		2
Acquisition Of Two Clinic Practices [Member] | August 2019 [Member]
Business Combination, Description [Abstract]
Cash paid for acquisition of interest in clinic		$ 760,000
Seller notes issued for acquisition of interest in clinic		150,000
Seller notes		$ 150,000
Industrial Injury Prevention [Member]
Business Combination, Description [Abstract]
Percentage of interest acquired	65.00%					55.00%
Cash paid for acquisition of interest in clinic						$ 6,200,000
Seller notes issued for acquisition of interest in clinic						400,000
Number of businesses merged | Business	2
Percentage of combined business interest owned	59.45%
Seller notes						$ 400,000
Industrial Injury Prevention [Member] | April 2019 [Member]
Business Combination, Description [Abstract]
Cash paid for acquisition of interest in clinic	$ 8,600,000
Seller notes issued for acquisition of interest in clinic	400,000
Acquisition cost payable in two principal installments including accrued interest	200,000
Seller notes	$ 400,000
Acquisition of Seventeen Clinic Practices [Member]
Business Combination, Description [Abstract]
Number of clinics | Clinic							17
Percentage of interest acquired											70.00%
Cash paid for acquisition of interest in clinic							$ 10,700,000
Seller notes issued for acquisition of interest in clinic											$ 500,000
Business acquisition number of installments to payment of purchase consideration | Installment							2
Seller notes											$ 500,000
Acquisition of Seventeen Clinic Practices [Member] | January 2018 [Member]
Business Combination, Description [Abstract]
Acquisition cost payable in two principal installments including accrued interest							$ 250,000
Acquisition of Seventeen Clinic Practices [Member] | January 2019 [Member]
Business Combination, Description [Abstract]
Acquisition cost payable in two principal installments including accrued interest							$ 250,000
Acquisition Of Four Clinic Practices [Member]
Business Combination, Description [Abstract]
Number of clinics | Clinic					4
Percentage of interest acquired					70.00%
Cash paid for acquisition of interest in clinic					$ 2,300,000
Seller notes issued for acquisition of interest in clinic					$ 250,000
Business acquisition number of installments to payment of purchase consideration | Installment					2
Seller notes					$ 250,000
Acquisition Of Four Clinic Practices [Member] | May 2018 [Member]
Business Combination, Description [Abstract]
Acquisition cost payable in two principal installments including accrued interest					125,000
Acquisition Of Four Clinic Practices [Member] | May 2019 [Member]
Business Combination, Description [Abstract]
Acquisition cost payable in two principal installments including accrued interest					$ 125,000
Acquisition Of Nine Clinic Practices [Member]
Business Combination, Description [Abstract]
Number of clinics | Clinic			9	9
Number of management contracts | Contract			2
Percentage of interest acquired			70.00%	60.00%					60.00%
Cash paid for acquisition of interest in clinic			$ 4,000,000	$ 15,800,000
Seller notes issued for acquisition of interest in clinic			$ 500,000	$ 500,000					$ 500,000
Business acquisition number of installments to payment of purchase consideration | Installment			2	2
Seller notes			$ 500,000	$ 500,000					$ 500,000
Acquisition Of Nine Clinic Practices [Member] | June 2018 [Member]
Business Combination, Description [Abstract]
Acquisition cost payable in two principal installments including accrued interest				250,000
Acquisition Of Nine Clinic Practices [Member] | June 2019 [Member]
Business Combination, Description [Abstract]
Acquisition cost payable in two principal installments including accrued interest				$ 250,000
Acquisition Of Nine Clinic Practices [Member] | October 2018 [Member]
Business Combination, Description [Abstract]
Acquisition cost payable in two principal installments including accrued interest			250,000
Acquisition Of Nine Clinic Practices [Member] | October 2019 [Member]
Business Combination, Description [Abstract]
Acquisition cost payable in two principal installments including accrued interest			$ 250,000

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