CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Operating activities:
Net loss	$ (8,160)	$ (17,284)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	5	23
Stock-based compensation	499	1,151
Changes in lease liability	(37)	(55)
Changes in operating assets and liabilities:
Prepaid expenses and other assets	3,129	3,364
Accounts payable, accrued and other current liabilities	(2,070)	599
Net cash used in operating activities	(6,634)	(12,202)
Investing activities:
Purchase of property, plant and equipment	0	(6)
Net cash used in investing activities	0	(6)
Financing activities:
Proceeds from issuing common stock and pre-funded warrants, net	6,209	0
Payment of preferred stock dividend	0	(151)
Net cash provided by (used) in financing activities	6,209	(151)
Effect of exchange rate changes on cash and cash equivalents	29	(42)
Net increase (decrease) in cash and cash equivalents	(396)	(12,401)
Cash and cash equivalents, beginning of period	3,378	18,345
Cash and cash equivalents, end of period	2,982	5,944
Cash received during the period for:
Interest	59	243
Research & development tax credits	3,715	4,846
Cash paid during the period for:
Taxes	2	2
Non cash financing activities:
Accrual of preferred stock dividends	$ 0	$ 50