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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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