Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (11,506)	$ (3,656)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	358	411
Share-based compensation	764	115
Noncash lease expense	57	199
Loss (gain) on changes in fair value of contingent payment obligations	3,382	(823)
Loss on disposal/impairment of equipment and other assets	394	215
Noncash expense for amendment of equity-related agreements	2,211
Changes in operating assets and liabilities:
Accounts receivable		1
Inventories		40
Prepaid expenses and other assets	266	15
Accounts payable and accrued expenses	1,251	1,081
Operating lease liabilities	(154)	(148)
Total adjustments	8,529	1,106
Net cash used in operating activities	(2,977)	(2,550)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from sale of property and equipment		23
Purchases of property and equipment	(3)
Payments for patent costs and other intangible assets		(17)
Net cash (used in) provided by investing activities	(3)	6
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, including contingent payment rights, in private offerings	2,578
Net proceeds from exercise of options and warrants	875	15
Net proceeds from debt financings	1,244	1,865
Principal payments on notes payable	(1,231)	(800)
Net cash provided by financing activities	3,466	1,080
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	486	(1,464)
CASH AND CASH EQUIVALENTS, beginning of period	57	1,527
CASH AND CASH EQUIVALENTS, end of period	$ 543	$ 63