CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net loss		$ (12,946)	$ (12,189)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation		1,035	2,091
Amortization of intangible assets		944	910
Non-cash operating lease cost		377	402
Provision for bad debts		28	(23)
Loss on disposal of property and equipment		27
Stock-based compensation expense		3,910	73
Changes in operating assets and liabilities:
Accounts receivable, net		912	288
Prepaid and other current assets		(123)	(273)
Inventories		(8,126)	(3,092)
Accounts payable		772	4,929
Accrued liabilities		(70)	699
Other		1,466	372
Net cash used in operating activities		(11,794)	(5,813)
Cash flows from investing activities
Acquisition of intangibles			(1,700)
Purchase of property and equipment		(261)	(318)
Proceeds from sale of property and equipment		40
Net cash used in investing activities		(221)	(2,018)
Cash flows from financing activities
Contributions from PDL		2,366	2,644
Distributions to PDL		(1,862)	(52)
Proceeds from note payable due to related party		12,400	4,225
Payment of contingent consideration			(1,071)
Sale of common stock to PDL		16,431
Capital contribution from PDL		20,666
Net cash provided by financing activities		50,001	5,746
Net increase (decrease) in cash and restricted cash		37,986	(2,085)
Cash and restricted cash at beginning of the period	[1]	4,715	3,444
Cash and restricted cash at end the period	[2]	42,701	1,359
Supplemental cash flow information
Cash paid for interest		478	302
Supplemental schedule of non-cash investing and financing activities
Transfer from equipment under lease, net to inventories		2,521	439
Phantom stock liability settled with common stock		783	$ 584
Modification of phantom stock-based awards		306
Common stock issued to extinguish Series A Preferred Stock		37,246
Common stock issued to extinguish note payable due to related party		$ 32,633

[1] Includes restricted cash of $100 as of December 31, 2019 and 2018, respectively.

[2] Includes restricted cash of zero and $100 as of September 30, 2020 and 2019, respectively.