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SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Allowance for doubtful accounts, Beginning balance |  |  | $ (2,354) |
Adjustment for allowance for doubtful accounts | $ (51) | $ (80) | (175) | $ (247)
Total charges |  |  | 175 |
Allowance for doubtful accounts, Ending balance | $ (2,529) |  | (2,529) |
Medicaid [Member] |  |  |  |
Adjustment for allowance for doubtful accounts |  |  | (10) |
Medicare [Member] |  |  |  |
Adjustment for allowance for doubtful accounts |  |  | (43) |
Third-Party Payor [Member] |  |  |  |
Adjustment for allowance for doubtful accounts |  |  | (107) |
Self-Pay [Member] |  |  |  |
Adjustment for allowance for doubtful accounts |  |  | $ (15) |

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