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Other Financial Information
 3 Months Ended
Mar. 31, 2024
Other Financial Information [Abstract]  
Other Financial Information Other Financial Information
Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets consist of the following (in thousands):
                                                                     
 March 31, 2024December 31, 2023
Diagnostic testing supplies$2,100 $2,871 
Prepaid product royalties34 35 
Prepaid maintenance and insurance contracts2,077 1,860 
Other prepaid expenses and other current assets21 31 
Prepaid expenses and other current assets$4,232 $4,797 
Property and Equipment
Property and equipment consist of the following (in thousands):
 
 March 31, 2024December 31, 2023
Furniture and fixtures$98 $98 
Laboratory equipment4,901 5,312 
Computer equipment and software2,073 2,185 
Leasehold improvements3,316 3,316 
Construction in progress56 59 
Total property and equipment10,444 10,970 
Less: accumulated depreciation and amortization(5,669)(5,769)
Property and equipment, net$4,775 $5,201 
Depreciation and amortization expense for the three months ended March 31, 2024 and 2023 was approximately $0.5 million and $0.6 million, respectively.
Accrued and Other Current Liabilities
Accrued and other current liabilities consist of the following (in thousands):
 
 March 31, 2024December 31, 2023
Accrued payroll and related expenses$3,711 $4,738 
Accrued interest140 139 
Accrued purchases of goods and services634 720 
Accrued royalties219 463 
Accrued clinical study activity— 118 
Finance lease obligations, current portion438 490 
Refund liability311 302 
Other accrued liabilities587 561 
Accrued and other current liabilities$6,040 $7,531