March 31,
2024

December 31, 2023

Short-term debt - unaffiliated:

Yorkville - PPA (measured at fair value)

$

—

$

17,223

Yorkville - convertible promissory note (measured at fair value)

2,918

—

Short-term debt - other

2,183

2,108

Total short-term debt - unaffiliated

5,101

19,331

Short-term debt - related parties:

C.V. Starr Bridge Loan, net of discount

5,644

5,523

RWI Bridge Loan, net of discount

27,596

12,967

CEO promissory note

1,459

1,419

Total short-term debt - related parties

34,699

19,909

Total debt

$

39,800

$

39,240