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ACCOUNTS RECEIVABLE (SCHEDULE OF CHANGE IN ALLOWANCE) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
ACCOUNTS RECEIVABLE AND SIGNIFICANT CLIENTS [Abstract] |  |  |  |
Balance, beginning balance | $ 5,078 | $ 5,032 | $ 3,524 | $ 5,409
Provision for credit losses | (558) | 383 | 1,704 | 198
Uncollectible receivables written-off | (2,180) | (6) | (2,889) | (218)
Effect of foreign currency | 7 | (3) | 8 | 17
Balance, ending balance | $ 2,347 | $ 5,406 | $ 2,347 | $ 5,406

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