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OTHER INCOME (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
Clinic
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
Clinic
Sep. 30, 2019
USD ($)
Other Income [Abstract]        
Gain on sale of closed clinics     $ 1,100  
Number of clinics closed | Clinic 12   12  
Relief funds received $ 390 $ 0 $ 8,349 $ 0
Other Income [Member]        
Other Income [Abstract]        
Relief funds received 400   8,300  
Public Health and Social Services Emergency Fund [Member]        
Other Income [Abstract]        
Relief funds received     8,300  
Public Health and Social Services Emergency Fund [Member] | Other Income [Member]        
Other Income [Abstract]        
Relief funds received $ 400   $ 8,300