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v3.24.1

Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Cash flows from operating activities: |  |
Net loss | $ (47,678) | $ (36,508)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Stock option compensation expense | 8,151 | 7,941
Depreciation expense | 128 | 132
Warrant liability fair value adjustment | 7,998 | 0
Non-cash lease expense | 271 | 443
Amortization of debt discount | 776 | 768
Interest expense accrued related to convertible notes | 160 | 160
Amortization of premiums and discounts on marketable securities | (151) | 0
Changes in assets and liabilities: |  |
Prepaid expenses and other assets | 1,029 | 774
Accounts receivable | 125 | (322)
Inventory | (1,324) | (587)
Accounts payable and accrued expenses | (199) | 1,798
Other liabilities, non-current | (537) | 621
Deferred revenue | 0 | (170)
Net cash used in operating activities | (31,251) | (24,950)
Cash flows from investing activities: |  |
Purchases of investments | (19,651) | 0
Sales and maturities of investments | 0 | 0
Purchase of property, plant and equipment | (58) | (209)
Net cash used in investing activities | (19,709) | (209)
Cash flows from financing activities: |  |
Net proceeds from private placement | 22,960 | 10,857
Proceeds from the issuance of common stock relating to the employee stock purchase plan | 123 | 0
Repayment of Debt | (6,313) | (714)
Proceeds from the exercise of warrants | 35,004 | 0
Proceeds from the exercise of stock options | 4 | 0
Net cash provided by financing activities | 51,778 | 10,143
Foreign currency effects on cash | 56 | (115)
Net increase (decrease) in total cash | 874 | (15,131)
Total Cash, Cash Equivalents and Restricted Cash: |  |
Beginning of period | 11,822 | 26,953
End of period | 12,696 | 11,822
Cash, Cash Equivalents and Restricted Cash consisted of the following: |  |
Cash | 12,646 | 7,671
Restricted Cash | 50 | 4,151
Total | 12,696 | 11,822
Cash paid during the periods for: |  |
Interest expense | 1,459 | 1,873
Supplemental Disclosure of Non-Cash Investing and Financing Activities: |  |
Right of use assets obtained in exchange for lease obligations | 84 | 86
Conversion of mezzanine equity to common shares | 11,269 | 0
Conversion of mezzanine equity to preferred shares | $ 7,099 | $ 0

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