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FAIR VALUE MEASUREMENTS (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 29, 2019 | Sep. 29, 2019 | Sep. 30, 2018 | Dec. 30, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Contingent consideration paid |  | $ 2,672,000 | $ 327,996 |
Interest expense on earn out payable |  | 110,903 | $ 515,932 |
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 | $ 0 | $ 0 |  | $ 2,363,512
Covenants not to compete |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Finite-lived intangible assets, gross | $ 200,000 |  |  |

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