CONVERTIBLE NOTES (Schedule of Interest Expense Recognized) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loss on extinguishment of convertible notes	$ 0	$ 0	$ 831
Amortization of debt issuance costs and debt discount	267	300	2,673
2021 Notes
Contractual interest expense			2,855
Debt discount amortization			2,575
Loss on extinguishment of convertible notes			831
Total			6,261
2024 Notes
Contractual interest expense	2,534	2,156	767
Amortization of debt issuance costs and debt discount	267	300	97
Total	$ 2,801	$ 2,456	$ 864