ACCRUED EXPENSES (Tables)
 3 Months Ended
Mar. 31, 2020
ACCRUED EXPENSES [Abstract]  
Accrued Expenses
Accrued expenses as of  March 31, 2020 and December 31, 2019 consisted of the following (in thousands):

  
March 31, 2020
    
December 31, 2019
  
Salaries and related costs
  
$
19,230
    
$
19,340
  
Credit balances due to patients and payors
    
5,115
      
4,303
  
Group health insurance claims
    
2,499
      
2,277
  
Dividends payable
    
4,110
      
-
  
Closure costs
    
1,843
      
-
  
Federal income taxes payable
    
1,891
      
-
  
Other
    
5,957
      
4,935
  
Total
  
$
40,645
    
$
30,855