BUSINESS SEGMENTS (Reconciliation of Revenue and Operating Income) (Details) - USD ($)	3 Months Ended
Mar. 29, 2020	Mar. 31, 2019	Dec. 29, 2019
Segment Reporting Information [Line Items]
Revenues	$ 74,067,429	$ 68,776,067
Depreciation	227,271	202,426
Amortization	1,187,442	1,029,083
Operating income	2,657,394	3,586,708
Capital expenditures	1,049,673	341,464
Total assets	138,135,278		$ 115,586,044
Operating Segments \| Real Estate
Segment Reporting Information [Line Items]
Revenues	20,027,833	19,175,782
Depreciation	55,340	44,113
Operating income	3,039,274	2,819,711
Capital expenditures	25,724	10,661
Total assets	15,024,352		16,785,163
Operating Segments \| Professional
Segment Reporting Information [Line Items]
Revenues	36,343,906	30,593,668
Depreciation	99,432	84,483
Amortization	1,180,834	1,022,805
Operating income	1,839,783	1,833,559
Capital expenditures	40,972	328,648
Total assets	96,523,696		72,623,242
Operating Segments \| Light Industrial
Segment Reporting Information [Line Items]
Revenues	17,695,690	19,006,617
Depreciation	27,105	25,421
Operating income	1,097,098	1,202,991
Capital expenditures	0	2,155
Total assets	13,423,703		15,223,581
Home office
Segment Reporting Information [Line Items]
Depreciation	45,394	48,409
Amortization	6,608	6,278
Capital expenditures	982,977	0
Total assets	13,163,527		$ 10,954,058
Home office \| Selling and Marketing Expense
Segment Reporting Information [Line Items]
Operating income	(92,662)	(132,428)
Home office \| General and Administrative Expense
Segment Reporting Information [Line Items]
Operating income	$ (3,226,099)	$ (2,137,125)

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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