Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (4,066)	$ (6,873)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	163	192
Share-based compensation	1,491	1,823
Loss on changes in fair value of contingent payment obligations	397	2,824
Loss on disposal/impairment of equipment and other assets	64	12
Loan forgiveness		(194)
Changes in operating assets and liabilities:
Prepaid expenses and other assets	213	441
Accounts payable and accrued expenses	210	(4,257)
Operating lease liabilities	(81)	(69)
Total adjustments	2,457	772
Net cash used in operating activities	(1,609)	(6,101)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(4)	(2)
Net cash used in investing activities	(4)	(2)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net (payments) proceeds from issuance of common stock, including contingent payment rights, in private offerings	(18)	5,186
Net proceeds from exercise of options and warrants	83	822
Net proceeds from debt financings	1,410
Principal payments on long-term debt	(46)	(45)
Net cash provided by financing activities	1,429	5,963
NET DECREASE IN CASH AND CASH EQUIVALENTS	(184)	(140)
CASH AND CASH EQUIVALENTS, beginning of period	1,030	1,627
CASH AND CASH EQUIVALENTS, end of period	$ 846	$ 1,487