UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue:
Revenue from external customers	$ 10,382	$ 11,770
Revenue from related party	2,497	0
Total revenues	12,879	11,770
Cost of goods sold	13,358	12,080
Gross loss	(479)	(310)
Operating costs and expenses:
Selling, general, and administrative	4,879	6,082
Depreciation and amortization	195	307
Research and development	1,415	1,542
Loss on sale of property and equipment	8	2
Gain on lease termination	(584)	0
Change in fair value of contingent convertible notes payable	3,892	0
Total operating costs and expenses	9,805	7,933
Loss from operations	(10,284)	(8,243)
Other income (expense):
Interest expense	(668)	(18)
Other income (expense)	224	(33)
Total other expense	(444)	(51)
Loss before income taxes	(10,728)	(8,294)
Income tax benefit (expense)	4	(6)
Net Loss	$ (10,724)	$ (8,300)
Loss per common share:
Basic (in dollars per share)	$ (0.15)	$ (0.12)
Diluted (in dollars per share)	$ (0.15)	$ (0.12)
Weighted average common shares:
Weighted average common shares used in computing basic loss per common share (in shares)	73,858	68,447
Weighted average common shares used in computing diluted loss per common share (in shares)	73,858	68,447