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RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018	Dec. 29, 2018
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Sales	$ 538,930	$ 634,834	$ 5,731,574	$ 1,147,789
Purchases	0	90,594	747,154	389,503
Receivables	799,250		799,250		$ 1,041,334
Contract assets	400,000		400,000		400,000
Payables	0		0		207,530
Goertek
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Sales	0	0	0	0
Purchases	0	90,594	747,154	389,503
Payables	0		0		207,530
RealWear, Inc.
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Sales	538,930	634,834	5,731,574	1,147,789
Purchases	0	$ 0	0	$ 0
Receivables	799,250		799,250		1,041,334
Contract assets	$ 400,000		$ 400,000		$ 400,000

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