Details of accrued liabilities are presented as follows (in thousands): | | | | | | | | | | | | | March 31, 2023 | | December 31, 2022 | | Accrued professional fees | $ | 3,066 | | | $ | 1,814 | | | Accrued salaries and payroll | 2,306 | | | 1,299 | | | Accrued bonus | 1,496 | | | 5,463 | | | Accrued clinical | 1,333 | | | 2,399 | | | Accrued contract manufacturing | 898 | | | 405 | | | Advanced customer payments | — | | | 1,571 | | | Accrued other - sales related | 1,150 | | | 1,435 | | | Accrued other | 584 | | | 536 | | | Total accrued liabilities | $ | 10,833 | | | $ | 14,922 | |
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