Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue:
Product sales, net of discounts and refunds	$ 1,087	$ 1,380
Consulting research & development income	0	27
Shipping and other sales	16	38
Total revenues	1,103	1,445
Cost of goods sold:
Cost of goods sold	353	417
Gross profit	750	1,028
Operating expenses:
Research and development expenses	264	644
Selling, general and administrative expenses	3,364	5,545
Change in fair value of contingent stock consideration	(847)	(662)
Impairment of goodwill	2,728	0
Total operating expenses	5,509	5,527
Net operating loss before other income (expense)	(4,759)	(4,499)
Other income (expense):
Interest income	2	2
Settlement income	82	0
Gain on extinguishment of debt	0	399
Loss on sale of property, plant and equipment	0	(41)
Change in fair value of convertible promissory notes	(280)	1,032
Interest expense	(196)	(64)
Total other income (expense)	(392)	1,328
Net loss before income taxes	(5,151)	(3,171)
Provision for income taxes	0	0
Net loss	$ (5,151)	$ (3,171)
Net loss per share
Basic net income per share	$ (0.07)	$ (0.07)
Diluted net income per share	$ (0.07)	$ (0.07)
Weighted average common shares outstanding
Basic	68,849,400	47,686,793
Diluted	68,849,400	47,686,793