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v3.25.1

Condensed consolidated statements of cash flows - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Cash flows from operating activities: |  |
Net loss | $ (11,263) | $ (13,322)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization expense | 847 | 806
Loss on fixed asset impairment | 19 | 0
Stock-based compensation expense | 1,042 | 1,085
Provision for excess and obsolete inventory | 235 | 85
Noncash lease expense | 305 | 305
Accretion on investments | 32 | (500)
Other | 9 | 8
Changes in operating assets and liabilities: |  |
Accounts receivable | 2,998 | 611
Inventory | (1,075) | (543)
Prepaid expenses and other current assets | 196 | (415)
Accounts payable | 100 | (809)
Accrued expenses and other current liabilities | (2,003) | (3,095)
Deferred revenue | (507) | 259
Net cash used in operating activities | (9,065) | (15,525)
Cash flows from investing activities: |  |
Purchases of property and equipment | (319) | (585)
Purchases of investments | 0 | (4,380)
Maturity of investments | 11,000 | 18,480
Net cash provided by investing activities | 10,681 | 13,515
Cash flows from financing activities: |  |
Proceeds from issuance of Class A common stock - stock option exercise | 296 | 0
Proceeds from issuance of Class A common stock - employee stock purchase plan | 90 | 168
Payments on finance lease obligations | (7) | (10)
Net cash provided by financing activities | 379 | 158
Net decrease in cash, cash equivalents and restricted cash | 1,995 | (1,852)
Cash, cash equivalents and restricted cash at beginning of period | 17,276 | 24,569
Cash, cash equivalents and restricted cash at end of period | 19,271 | 22,717
Supplemental disclosure of cash flow information |  |
Cash paid for interest | 12 | 9
Supplemental disclosure of non-cash investing activities |  |
Purchases of property and equipment in accounts payable and accrued expenses | $ 106 | $ 348

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