STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net loss	$ (9,926,000)	$ (19,322,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	20,000	16,000
Amortization of right-of-use asset - operating	94,000	75,000
Share-based compensation	556,000	497,000
Loss from disposal of property and equipment	5,000
Change in operating assets and liabilities:
Other current assets	808,000	(156,000)
Other assets		(6,000)
Accounts payable	(783,000)	(411,000)
Accrued compensation and employee benefits	(752,000)	110,000
Accrued expenses and other liabilities	(934,000)	435,000
Net cash used in operating activities	(10,912,000)	(18,762,000)
Cash flows from investing activities:
Purchase of property and equipment	(2,000)	(43,000)
Net cash used in investing activities	(2,000)	(43,000)
Cash flows from financing activities:
Proceeds from the issuance of common stock		24,070,000
Common stock offering costs		(977,000)
Net cash provided by financing activities		23,093,000
Net increase in cash and cash equivalents	(10,914,000)	4,288,000
Cash and cash equivalents, beginning of year	53,359,000	49,071,000
Cash and cash equivalents, end of year	$ 42,445,000	53,359,000
Supplemental disclosure of noncash investing and financing transactions:
Leased assets obtained in exchange for operating lease liabilities		$ 84,000