CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities:
Net loss	$ (1,073)	$ (1,682)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	68	172
Change in operating assets and liabilities:
Receivables	3	0
Prepaid expenses and other current assets	(140)	307
Accounts payable	315	(19)
Accrued expenses	55	(697)
Net cash flows from operating activities	(772)	(1,917)
Net decrease in cash, cash equivalents and restricted cash	(772)	(1,917)
Cash, cash equivalents and restricted cash, beginning of period	1,091	6,062
Cash and cash equivalents, end of period	319	4,145
Supplementary disclosure of cash flow information:
Cash paid for interest	$ 0	$ 0