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ACQUISITIONS OF BUSINESSES (Details)
 3 Months Ended 12 Months Ended
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
Mar. 31, 2018
USD ($)
Clinic
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
Clinic
Dec. 31, 2016
USD ($)
Business Acquisition [Line Items]                    
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 $ 150,000               $ 2,150,000  
Cash paid, net of cash acquired 760,000           $ 761,000 $ 15,670,000 36,682,000  
Seller notes 150,000               2,150,000  
Total consideration 910,000               38,832,000  
Estimated fair value of net tangible assets acquired [Abstract]                    
Total current assets                 6,048,000  
Total non-current assets                 1,642,000  
Total liabilities                 (2,909,000)  
Net tangible assets acquired                 4,781,000  
Referral relationships 36,000               4,085,000  
Non-compete 18,000               1,224,000  
Tradename                 7,039,000  
Goodwill 856,000               45,868,000  
Fair value of non-controlling interest (classified as redeemable non-controlling interests)                 (13,883,000)  
Fair value of non-controlling interest (originally classified as mandatorily redeemable non-controlling interests)                 (10,282,000)  
Total consideration $ 910,000               $ 38,832,000  
Referral Relationships [Member] | Minimum [Member]                    
Business Acquisition [Line Items]                    
Estimated useful lives of acquired intangibles             7 years 6 months      
Referral Relationships [Member] | Maximum [Member]                    
Business Acquisition [Line Items]                    
Estimated useful lives of acquired intangibles             11 years      
Non-compete Agreements [Member] | Minimum [Member]                    
Business Acquisition [Line Items]                    
Estimated useful lives of acquired intangibles             5 years      
Non-compete Agreements [Member] | Maximum [Member]                    
Business Acquisition [Line Items]                    
Estimated useful lives of acquired intangibles             6 years      
Acquisition Of Two Clinic Practices [Member]                    
Business Acquisition [Line Items]                    
Number of clinics | Clinic 2                  
Acquisition of Seventeen Clinic Practices [Member]                    
Business Acquisition [Line Items]                    
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 Acquisition [Line Items]                    
Acquisition cost payable in two principal installments including accrued interest           $ 250,000        
Acquisition of Seventeen Clinic Practices [Member] | January 2019 [Member]                    
Business Acquisition [Line Items]                    
Acquisition cost payable in two principal installments including accrued interest           $ 250,000        
Workforce Performance Solutions [Member]                    
Business Acquisition [Line Items]                    
Percentage of interest acquired         55.00%          
Cash paid for acquisition of interest in clinic         $ 6,200,000          
Seller notes issued for acquisition of interest in clinic         400,000          
Seller notes         $ 400,000          
Acquisition Of Four Clinic Practices [Member]                    
Business Acquisition [Line Items]                    
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 Acquisition [Line Items]                    
Acquisition cost payable in two principal installments including accrued interest       125,000            
Acquisition Of Four Clinic Practices [Member] | May 2019 [Member]                    
Business Acquisition [Line Items]                    
Acquisition cost payable in two principal installments including accrued interest       $ 125,000            
Acquisition Of Nine Clinic Practices [Member]                    
Business Acquisition [Line Items]                    
Number of clinics | Clinic   9 9              
Number of management contracts | Contract   2                
Percentage of interest acquired   70.00% 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              
Business acquisition number of installments to payment of purchase consideration | Installment   2 2              
Seller notes   $ 500,000 $ 500,000              
Acquisition Of Nine Clinic Practices [Member] | June 2018 [Member]                    
Business Acquisition [Line Items]                    
Acquisition cost payable in two principal installments including accrued interest     250,000              
Acquisition Of Nine Clinic Practices [Member] | June 2019 [Member]                    
Business Acquisition [Line Items]                    
Acquisition cost payable in two principal installments including accrued interest     $ 250,000              
Acquisition Of Nine Clinic Practices [Member] | October 2018 [Member]                    
Business Acquisition [Line Items]                    
Acquisition cost payable in two principal installments including accrued interest   250,000                
Acquisition Of Nine Clinic Practices [Member] | October 2019 [Member]                    
Business Acquisition [Line Items]                    
Acquisition cost payable in two principal installments including accrued interest   $ 250,000