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Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Condensed Consolidated Statements Of Operations
Net sales	$ 26,103	$ 33,529
Cost of sales	23,533	31,228
Gross profit	2,570	2,301
Operating expenses:
Research and development	2,383	2,899
Intellectual property legal fees	4,131	8,918
Selling, general and administrative	7,546	6,856
Total operating expenses	14,060	18,673
Operating loss	(11,490)	(16,372)
Other expense, net:
Interest expense, net	(945)	(739)
Other expense, net	(4)	(11)
Total other expense, net	(949)	(750)
Loss before provision (benefit) for income taxes	(12,439)	(17,122)
Provision (benefit) for income taxes	13	(2)
Net loss	$ (12,452)	$ (17,120)
Net loss per common share:
Basic and diluted	$ (0.08)	$ (0.16)
Weighted-average common shares outstanding:
Basic and diluted	148,132	107,071

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