ACCRUED EXPENSES (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021
Payables and Accruals [Abstract]
Salaries and related costs	$ 22,272	$ 23,569
Credit balances due to patients and payors	6,788	6,649
Group health insurance claims	1,766	1,984
Closure costs	379	498
Federal taxes payable	3,590	2,716
Dividend payable to USPH shareholders	5,327	0	$ 4,514
Contingent payments related to acquisition	3,520	1,000
Settlement of a legal matter	0	2,750
Other	7,479	6,539
Total	$ 51,121	$ 45,705

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