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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details)
 1 Months Ended 3 Months Ended
May 31, 2017
USD ($)
Clinic
Installment
Mar. 31, 2017
USD ($)
Clinic
State
Facility
Region
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Nov. 02, 2015
Apr. 01, 2013
Depreciation Amortization Impairment [Line Items]            
Percentage of general partnership interest owned   1.00%        
Number of clinics operated | Clinic   558        
Number of states where clinics are operated | State   42        
Number of third party facilities | Facility   30        
Number of regions | Region   6        
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%
Combined physical therapy/speech language pathology expenses   $ 3,700        
Percentage of practice expense component   100.00%        
Percentage reduction for service   50.00%        
Net revenue from Medicare accounts   $ 22,300,000        
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%        
Unrecognized tax benefit   $ 0        
Accrued interest and penalties associated with any unrecognized tax benefits   0        
Interest expense recognized   0        
Increase in earnings by decreasing the tax provision due to adoption of new accounting treatment   1,812,000 $ 2,172,000      
Seller notes issued for acquisition of interest in clinic   $ 900,000   $ 1,000,000    
Accounting Standards Update 2016-09 [Member]            
Depreciation Amortization Impairment [Line Items]            
Increase in earnings by decreasing the tax provision due to adoption of new accounting treatment     $ 500,000      
Year 2017 [Member]            
Depreciation Amortization Impairment [Line Items]            
Percentage of increase in medicare payment rates   0.24%        
Year 2018 [Member]            
Depreciation Amortization Impairment [Line Items]            
Percentage of increase in medicare payment rates   0.50%        
Year 2019 [Member]            
Depreciation Amortization Impairment [Line Items]            
Percentage of increase in medicare payment rates   0.50%        
March 2017 Acquisition [Member]            
Depreciation Amortization Impairment [Line Items]            
Percentage of interest acquired   55.00%        
Acquisition of Four Clinic Practices [Member] | Subsequent Event [Member]            
Depreciation Amortization Impairment [Line Items]            
Percentage of interest acquired 70.00%          
Number of clinics | Clinic 4          
Cash paid for acquisition of interest in clinic $ 2,250,000          
Seller notes issued for acquisition of interest in clinic $ 250,000          
Business acquisition number of installments to payment of purchase consideration | Installment 2          
Acquisition cost payable in two principal installments including accrued interest $ 125,000          
Minimum [Member]            
Depreciation Amortization Impairment [Line Items]            
Percentage of limited partnership interest owned   49.00%        
Mandatorily redeemable non-controlling interest, redemption rights, commencement period   3 years        
Minimum [Member] | Furniture & Equipment [Member]            
Depreciation Amortization Impairment [Line Items]            
Estimated useful lives   3 years        
Minimum [Member] | Software [Member]            
Depreciation Amortization Impairment [Line Items]            
Estimated useful lives   3 years        
Minimum [Member] | Leasehold Improvements [Member]            
Depreciation Amortization Impairment [Line Items]            
Estimated useful lives   3 years        
Maximum [Member]            
Depreciation Amortization Impairment [Line Items]            
Percentage of limited partnership interest owned   99.00%        
Mandatorily redeemable non-controlling interest, redemption rights, commencement period   5 years        
Maximum [Member] | Year 2017 [Member]            
Depreciation Amortization Impairment [Line Items]            
Annual limit on physical therapy and speech language pathology services   $ 1,980        
Annual limit occupational therapy services   $ 1,980        
Maximum [Member] | Furniture & Equipment [Member]            
Depreciation Amortization Impairment [Line Items]            
Estimated useful lives   8 years        
Maximum [Member] | Software [Member]            
Depreciation Amortization Impairment [Line Items]            
Estimated useful lives   7 years        
Maximum [Member] | Leasehold Improvements [Member]            
Depreciation Amortization Impairment [Line Items]            
Estimated useful lives   5 years