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Interest Expense and Other (Tables)
3 Months Ended
Mar. 31, 2022
Other Income and Expenses [Abstract]  
Schedule of Interest Expense and Other
Interest expense and other for the three months ended March 31, 2022 and 2021 consisted of the following (in thousands):

Three months ended March 31,
20222021
Interest on term loan debt$— $137 
Interest on PPP loan— 
Interest on convertible note— 278 
Amortization of debt discount— 267 
Amortization of premiums on marketable securities, net of accretion of discounts336 — 
Other— 
Interest expense and other$343 $688