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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Cash flows from operating activities: |  |
Net loss | $ (9,924) | $ (12,773)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization | 42 | 104
Stock-based compensation | 903 | 2,062
Commitment shares issued to Lincoln Park Capital, LLC | 249 | 0
Loss on shares sold to Lincoln Park Capital, LLC | 11 | 0
Amortization of right-of-use asset | 83 | 186
Impairment of right-of-use asset | 0 | 772
Non-cash component of acquisition of Exacis in-process research and development | 433 | 0
Impairment of in-process research and development | 0 | 5,990
Loss on disposal of fixed assets | 1 | 274
Gain on lease termination | 0 | (85)
Change in fair value of warrant liabilities | (146) | (9,470)
Change in fair value of contingent consideration liability | (118) | 0
Loss on non-controlling investment | 59 | 911
Changes in operating assets and liabilities: |  |
Other receivables | (33) | (5)
Prepaid expenses and other current assets | 214 | (727)
Other non-current assets | (481) | 11
Accounts payable and accrued expenses | (454) | 2,295
Operating lease liability | (215) | (153)
Due to related party | (875) | 0
Deferred revenue | 250 | 0
Other liabilities | 80 | 1,183
Net cash used in operating activities | (9,921) | (9,425)
Cash flows from investing activities: |  |
Purchase of property and equipment | 0 | (233)
Proceeds from the sale of fixed assets | 0 | 100
Net cash used in investing activities | 0 | (133)
Cash flows from financing activities: |  |
Proceeds from issuance of common stock and warrants in connection with private offering | 0 | 11,993
Proceeds from sale of common stock pursuant to stock purchase agreement with Lincoln Park Capital Fund, LLC | 320 | 0
Payroll tax remitted on net share settlement of equity awards | 0 | (5)
Dividends paid to Series A preferred stockholders | (8) | (8)
Net cash provided by financing activities | 312 | 11,980
Net (decrease) increase in cash and cash equivalents | (9,609) | 2,422
Cash, cash equivalents and restricted cash at beginning of period | 15,541 | 16,985
Cash, cash equivalents and restricted cash at end of period | 5,932 | 19,407
Cash paid during the period for: |  |
Interest | 13 | 14
Income taxes | 4 | 8
Supplemental disclosure of non-cash investing and financing activities: |  |
Contingent consideration for Exacis asset acquisition | 225 | 0
Issuance of common stock for Exacis asset acquisition | 208 | 0
Initial measurement of right-of-use asset | 34,410 | 1,706
Initial measurement of lease liability | 34,169 | 1,706
Reconciliation of cash, cash equivalents and restricted cash at end of period: |  |
Cash and cash equivalents | 1,837 | 19,407
Restricted cash | 4,095 | 0
Total cash, cash equivalents and restricted cash at end of period | $ 5,932 | $ 19,407

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