FAIR VALUE MEASUREMENTS (Schedule of Fair Value) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 25, 2016	Dec. 27, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ 6,477,670
Fair value of contingent consideration	4,400,000
Interest expense on contingent consideration payable	1,208,095	$ 1,839,429	$ 697,660
Contingent consideration paid	(4,024,257)	(7,556,162)	$ (869,545)
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	$ 6,477,670	$ 5,166,885
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate (as a percent)	8.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount rate (as a percent)	22.00%