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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule of Provision for Income Taxes Based on Loss from Operations | The provision (benefit) for income taxes is based on loss from operations before provision for income taxes and noncontrolling interests as follows ($ in thousands):
| Years Ended December 31,
Pre-tax book income | 2023 |  | 2022 |  |
United States | $ | (21,477) |  |  | $ | (56,175) |  |  |
Australia | (1,693) |  |  | (529) |  |  |
Total | $ | (23,170) |  |  | $ | (56,704) |  |  |
Schedule of Benefit from Income Taxes | The provision (benefit) from income taxes was as follows ($ in thousands):
|  | Years Ended December 31, |  |
|  | 2023 |  | 2022 |  |
Current |  |  |  |  |  |
U.S. Federal |  | $ | — |  |  | $ | — |  |  |
State and local |  | — |  |  | — |  |  |
|  | $ | — |  |  | $ | — |  |  |
Deferred |  |  |  |  |  |
U.S. Federal |  | $ | — |  |  | $ | — |  |  |
State and local |  | (2,330) |  |  | (2,479) |  |  |
|  | $ | (2,330) |  |  | $ | (2,479) |  |  |
Total |  |  |  |  |  |
U.S. Federal |  | $ | — |  |  | $ | — |  |  |
State and local |  | (2,330) |  |  | (2,479) |  |  |
|  | $ | (2,330) |  |  | $ | (2,479) |  |  |
Schedule of Reconciliation of Effective Income Taxes | The provision (benefit) for income taxes is determined by applying the U.S. Federal statutory rate of 21% to income before income taxes, and the components are set forth below ($ in thousands):
|  | Years Ended December 31, |  |
|  | 2023 |  | 2022 |  |
U.S. Federal benefit at statutory rate |  | $ | (4,865) |  |  | $ | (11,908) |  |  |
Permanent nondeductible expenses for U.S. taxes |  | 875 |  |  | 7,238 |  |  |
Change in state deferred |  | 809 |  |  | 8,604 |  |  |
Tax Return to Provision |  | (58) |  |  | (1) |  |  |
Expired options |  | 569 |  |  | 162 |  |  |
Other true ups |  | 166 |  |  | (25) |  |  |
AUS Foreign Rate Differential |  | (22) |  |  | (21) |  |  |
Section 382 NOL Limitation |  | — |  |  | 18,553 |  |  |
Sale of New Jersey State NOLs |  | (2,330) |  |  | (2,479) |  |  |
Valuation allowance for deferred tax assets |  | 2,526 |  |  | (22,602) |  |  |
Tax benefit |  | $ | (2,330) |  |  | $ | (2,479) |  |  |
Schedule of Components Deferred Income Taxes | Deferred income taxes at December 31, 2023 and 2022 consist of the following ($ in thousands):
|  | December 31,
|  | 2023 |  | 2022
Deferred Tax Assets: |  |  |  |
Accumulated net operating losses (tax effected) |  | $ | 12,736 |  |  | $ | 13,132 |
Lease liability |  | 86 |  |  | 136 |
Share-based compensation |  | 2,370 |  |  | 3,027 |
Intangibles |  | 889 |  |  | 944 |
Capitalized research and development |  | 6,662 |  |  | 5,018 |
Accumulated depreciation |  | 10 |  |  | 14 |
Accrued payroll |  | 218 |  |  | 118 |
Other |  | 638 |  |  | 579 |
Deferred tax assets |  | 23,609 |  |  | 22,968 |
Deferred Tax Liabilities: |  |  |  |
Right-of-use asset |  | $ | (87) |  |  | $ | (137) |
Cash to accrual |  | — |  |  | (99) |
Deferred tax liabilities |  | (87) |  |  | (236) |
Net deferred tax asset |  | 23,522 |  |  | 22,732 |
Valuation allowance |  | (23,522) |  |  | (22,732) |
Net deferred tax asset |  | $ | — |  |  | $ | — |
Schedule of Unrecognized Tax Benefits Roll Forward | A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows:
|  | Years Ended December 31, |  |
|  | 2023 |  | 2022 |  |
Gross unrecognized tax benefit, beginning of period |  | $ | 344 |  |  | $ | — |  |  |
Additions based on tax positions related to the current year |  | — |  |  | — |  |  |
Additions based on tax positions related to the prior years |  | — |  |  | 344 |  |  |
Reductions due to lapse in statute of limitations and settlements |  | — |  |  | — |  |  |
Gross unrecognized tax benefit, end of period |  | $ | 344 |  |  | $ | 344 |  |  |

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