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RELATED PARTY TRANSACTIONS (Details) - USD ($)	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Dec. 29, 2018
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Sales	$ 525,386	$ 251,351
Purchases	1,246,077	220,004
Receivables	997,620		$ 1,041,334
Contract assets	400,000		400,000
Payables	892,704		207,530
Goertek
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Sales	0	0
Purchases	1,246,077	220,004
Payables	892,704		207,530
RealWear, Inc.
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Sales	525,386	251,351
Purchases	0	$ 0
Receivables	997,620		1,041,334
Contract assets	$ 400,000		$ 400,000

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