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NOTES PAYABLE (Tables)
 12 Months Ended
Dec. 31, 2024
Debt Disclosure [Abstract]  
Schedule of Carrying Value
The carrying value of the 16.00% Notes consisted of the following at December 31, 2024 (in thousands):

Principal$15,960 
Accretion of exit premium1,204 
Unamortized debt issuance costs(652)
Net carrying amount$16,512 
As of December 31, 2024 and 2023, the convertible note obligations were classified as follows in the consolidated balance sheets (in thousands):
20242023
2.50% Notes
$— $726 
  5.00% Notes
$46,839 $36,102 
Total convertible notes$46,839 $36,828 
Current portion of convertible notes$— $726 
Convertible notes, non-current$46,839 $36,102 
Schedule of Interest Expense
Interest expense related to the Company’s 16.00% Note obligation consisted of the following for the year ended December 31, 2024 (in thousands):
Contractual coupon interest$961 
Amortization of premium, discount and issuance costs, net1,320 
Total interest expense$2,281 
Interest expense related to the Company’s convertible note obligations consisted of the following for the years ended December 31 (in thousands):

20242023
Contractual coupon interest$3,433 $2,425 
Amortization of premium, discount and issuance costs, net
7,360 3,278 
Total interest expense on convertible notes$10,793 $5,703