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FAIR VALUE MEASUREMENTS (Schedule of Fair Value) (Details) | 12 Months Ended
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Dec. 30, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 25, 2016 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Interest expense on contingent consideration payable | $ 624,145 | $ 1,208,095 | $ 1,839,429
Contingent consideration paid | (962,996) | (4,024,257) | $ (7,556,162)
Fair value of contingent consideration | 4,400,000 |  |
Contingent Consideration | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Contingent consideration | $ 2,363,512 | $ 6,477,670 |
Discount Rate | Minimum |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Discount rate (as a percent) | 0.08 |  |
Discount Rate | Maximum |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Discount rate (as a percent) | 0.22 |  |

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