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CONVERTIBLE NOTES (Schedule of Interest Expense Recognized) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Loss on extinguishment of convertible notes | $ 0 | $ 831 | $ 0
Amortization of debt issuance costs and debt discount | 300 | 2,673 | 3,470
2021 Notes |  |  |
Contractual interest expense |  | 2,855 | 4,344
Debt discount amortization |  | 2,575 | 3,470
Loss on extinguishment of convertible notes |  | 831 |
Other expenses |  |  | 1,300
Total |  | 6,261 | $ 9,114
2024 Notes |  |  |
Contractual interest expense | 2,156 | 767 |
Amortization of debt issuance costs and debt discount | 300 | 97 |
Total | $ 2,456 | $ 864 |

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