June 30, 2024

December 31, 2023

Outstanding principal amount

$

16,177

$

22,376

Add: accreted liability of final payment fee

259

673

Less: unamortized debt discount, long-term

(58)

(224)

Less: current portion of long-term debt principal

(13,014)

(12,931)

Debt – net of current portion

$

3,364

$

9,894

Current portion of long-term debt – principal

13,014

12,931

Add: accreted liability of final payment fee

511

—

Less: current portion of unamortized debt discount

(483)

(767)

Debt – current portion

$

13,042

$

12,164