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v3.23.1

Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Operating activities |  |
Net loss | $ (87,966,000) | $ (34,506,000)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Amortization of operating lease asset | 373,000 | 195,000
Impairment charge | 48,648,000 | 0
Stock-based compensation | 8,153,000 | 7,904,000
Deferred income taxes |  | (2,354,000)
Changes in operating assets and liabilities: |  |
Prepaid expenses and other assets | 654,000 | (2,095,000)
Accounts payable and accrued expenses | 2,081,000 | 2,143,000
Operating lease liability | (367,000) | (200,000)
Net cash used in operating activities | (28,424,000) | (28,913,000)
Financing activities |  |
Proceeds from exercise of stock options |  | 1,000
Payment of offering costs in connection with PIPE transaction |  | (450,000)
Net cash used in financing activities |  | (449,000)
Net change in cash and cash equivalents | (28,424,000) | (29,362,000)
Cash and cash equivalents at beginning of year | 84,833,000 | 114,195,000
Cash and cash equivalents at end of year | 56,409,000 | 84,833,000
Supplemental disclosure of non-cash investing and financing activities |  |
Increase in operating lease asset and liability due to new and modified operating leases | 344,000 | 825,000
Common stock exchange for warrants |  | $ 1,000
Common stock exchanged for X1 non-voting convertible preferred stock | $ 1,000 |

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