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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Cash flows from operating activities: |  |
Net loss | $ (33,253) | $ (27,042)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Stock-based compensation | 4,908 | 2,765
Depreciation and amortization | 2,917 | 1,318
Amortization of deferred costs | 1,246 | 1,070
Non-cash operating lease expense | 3,857 | 811
Changes in operating assets and liabilities: |  |
Accounts receivable | (3,325) | (1,201)
Inventories | (1,934) | 13
Deferred costs | (467) | (1,692)
Prepaid expenses and other current assets | (654) | 101
Other assets | (6) | (9)
Accounts payable | 3,287 | 1,226
Accrued and other current liabilities | (1,383) | 2,308
Deferred revenue | (1,617) | 306
Operating lease liabilities | (843) | (727)
Net cash used in operating activities | (27,267) | (20,753)
Cash flows from investing activities: |  |
Purchase of property, plant and equipment | (6,834) | (11,799)
Net cash used in investing activities | (6,834) | (11,799)
Cash flows from financing activities: |  |
Proceeds from issuance of common stock upon exercise of stock warrants | 14,384 | 1
Payment of equity financing costs | (756) | (406)
Proceeds from exercise of stock options | 96 | 115
Net cash provided by financing activities | 24,585 | 16,252
Net decrease in cash, cash equivalents and restricted cash equivalents | (9,516) | (16,300)
Cash, cash equivalents and restricted cash equivalents, beginning of period | 45,817 | 69,752
Cash, cash equivalents and restricted cash equivalents, end of period | 36,301 | 53,452
Reconciliation of cash, cash equivalents and restricted cash equivalents shown on the condensed consolidated balance sheets: |  |
Cash and cash equivalents | 35,045 | 53,396
Restricted cash equivalents included in other assets | 1,256 | 56
Total cash, cash equivalents and restricted cash equivalents | 36,301 | 53,452
Supplemental non-cash investing and financing activities: |  |
Unpaid purchases of property, plant and equipment | 155 | 2,039
Increase in fair value of modified stock warrants | 727 | 0
Unpaid financing costs from the issuance of shares of common stock | 0 | 263
At Market Issuance Sales Agreement |  |
Cash flows from financing activities: |  |
Proceeds from issuance of common stock | 10,861 | 0
Stock Purchase Agreement |  |
Cash flows from financing activities: |  |
Proceeds from issuance of common stock | $ 0 | $ 16,542

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