BUSINESS SEGMENTS (Reconciliation of Revenue and Operating Income) (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018	Dec. 30, 2018
Segment Reporting Information [Line Items]
Revenues	$ 73,857,890	$ 70,945,438	$ 142,633,957	$ 137,800,908
Depreciation	201,420	185,274	403,846	351,110
Amortization	1,002,817	1,073,107	2,031,900	2,202,777
Operating income	5,420,758	6,577,171	9,007,467	10,612,475
Capital expenditures	332,288	298,615	673,752	452,519
Total assets	104,039,160		104,039,160		$ 100,268,803
Operating Segments \| Real Estate
Segment Reporting Information [Line Items]
Revenues	24,396,782	21,298,452	43,572,565	39,332,814
Depreciation	45,420	41,755	89,533	81,037
Operating income	4,121,208	3,721,201	6,940,920	6,327,578
Capital expenditures	29,218	68,148	39,879	77,309
Total assets	17,100,959		17,100,959		12,647,505
Operating Segments \| Professional
Segment Reporting Information [Line Items]
Revenues	31,321,332	30,132,365	61,915,000	61,222,121
Depreciation	84,469	64,434	168,951	116,464
Amortization	996,539	1,024,715	2,019,344	2,084,862
Operating income	2,212,221	2,089,205	4,045,781	4,355,860
Capital expenditures	68,211	186,495	396,859	261,755
Total assets	62,562,973		62,562,973		62,403,104
Operating Segments \| Light Industrial
Segment Reporting Information [Line Items]
Revenues	18,139,776	19,514,621	37,146,392	37,245,973
Depreciation	24,589	26,574	50,011	52,926
Amortization	0	44,101	0	110,251
Operating income	1,137,627	1,331,922	2,340,616	2,387,978
Capital expenditures	5,476	43,972	7,631	43,972
Total assets	17,939,782		17,939,782		18,992,392
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Depreciation	46,942	52,511	95,351	100,683
Amortization	6,278	4,291	12,556	7,664
Capital expenditures	229,383	0	229,383	69,483
Total assets	6,435,446		6,435,446		$ 6,225,802
Corporate, Non-Segment \| Selling and Marketing Expense
Segment Reporting Information [Line Items]
Operating income	(135,553)	(154,642)	(267,981)	(328,590)
Corporate, Non-Segment \| General and Administrative Expense
Segment Reporting Information [Line Items]
Operating income	$ (1,914,745)	$ (410,515)	$ (4,051,869)	$ (2,130,351)

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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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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