Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (13,174)	$ (5,775)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	497	604
Share-based compensation	1,004	401
Noncash lease expense	60	252
Loss (gain) on changes in fair value of contingent payment obligations	3,487	(755)
Loss on disposal/impairment of equipment and other assets	413	220
Noncash expense for amendment of equity-related agreements	2,211
Changes in operating assets and liabilities:
Accounts receivable		2
Inventories		77
Prepaid expenses and other assets	192	105
Accounts payable and accrued expenses	1,302	1,759
Operating lease liabilities	(174)	(184)
Total adjustments	8,992	2,481
Net cash used in operating activities	(4,182)	(3,294)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of property and equipment		27
Purchases of property and equipment	(3)	(5)
Payments for patent costs and other intangible assets		(18)
Net cash (used in) provided by investing activities	(3)	4
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, including contingent payment rights, in private offerings	3,057
Net proceeds from exercise of options and warrants	1,225	29
Net proceeds from debt financings	1,244	2,665
Principal payments on long-term debt	(1,251)	(800)
Principal payments on capital lease obligation		(1)
Net cash provided by financing activities	4,275	1,893
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	90	(1,397)
CASH AND CASH EQUIVALENTS, beginning of period	57	1,527
CASH AND CASH EQUIVALENTS, end of period	$ 147	$ 130