Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (20,251,000)	$ (19,815,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	119,000	207,000
Stock-based compensation	474,000	545,000
Change in fair value of warrant liability	2,106,000
Changes in operating assets and liabilities:
Accounts receivable	(786,000)	(175,000)
Prepaid expenses and other current assets	59,000	(94,000)
Accounts payable	521,000	457,000
Accrued expenses	461,000	(199,000)
Deferred revenue	63,000
Net cash used in operating activities	(17,234,000)	(19,074,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(67,000)	(99,000)
Net cash used in investing activities	(67,000)	(99,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock, and pre-funded warrants	4,971,000
Proceeds from issuance of common stock	1,278,000	3,560,000
Proceeds from private offering of common stock	6,270,000	13,490,000
Payments of long-term debt	(74,000)	(75,000)
Net cash provided by financing activities	12,445,000	16,975,000
NET DECREASE IN CASH AND CASH EQUIVALENTS	(4,856,000)	(2,198,000)
CASH AND CASH EQUIVALENTS–Beginning of period	6,391,000	8,589,000
CASH AND CASH EQUIVALENTS–End of period	$ 1,535,000	$ 6,391,000