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FAIR VALUE MEASUREMENTS (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Apr. 01, 2018 | Dec. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Interest expense on earn out payable | $ 48,874 | $ 179,378 |
Fair Value, Inputs, Level 3 | Contingent Consideration | Fair Value, Measurements, Recurring |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent consideration | $ 2,412,387 |  | $ 2,363,512

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