INTANGIBLE ASSETS (Schedule of Intangible Assets) (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	$ 921,461	$ 986,343	$ 2,795,585	$ 3,104,716
Amortization of intangible assets	992,480	1,052,896	3,024,381	3,255,674
Total expense	1,011,970	1,052,896	3,068,763	3,255,674
Client partner lists
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	881,525	944,093	2,671,149	2,937,716
Covenants not to compete
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	39,936	42,250	124,436	167,000
Amortization Expense \| Computer software
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	71,019	66,553	228,796	150,958
Selling, General and Administrative Expenses \| Computer software
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 19,490	$ 0	$ 44,382	$ 0