BUSINESS SEGMENTS (Reconciliation of Revenue and Operating Income) (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 24, 2017	Sep. 30, 2018	Sep. 24, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 77,062,137	$ 71,281,674	$ 214,863,045	$ 196,899,224
Depreciation	194,641	144,354	545,751	428,155
Amortization	1,052,896	1,291,925	3,255,674	4,244,600
Operating income	7,091,327	5,636,184	17,703,802	12,911,442
Capital expenditures	228,814	59,397	681,333	895,989
Total assets	104,829,536		104,829,536		$ 104,632,889
Operating Segments \| Multifamily
Segment Reporting Information [Line Items]
Revenues	26,531,283	21,758,642	65,864,097	51,436,393
Depreciation	44,784	23,255	125,819	70,159
Operating income	4,958,373	4,020,995	11,285,951	8,524,536
Capital expenditures	37,681	3,947	114,990	76,542
Total assets	15,755,175		15,755,175		11,678,908
Operating Segments \| Professional
Segment Reporting Information [Line Items]
Revenues	29,171,990	31,739,816	90,394,110	91,769,877
Depreciation	74,488	44,261	190,952	129,968
Amortization	1,047,511	1,222,402	3,132,372	3,993,474
Operating income	2,143,425	2,119,550	6,499,285	6,344,222
Capital expenditures	121,170	52,987	382,925	501,928
Total assets	64,084,428		64,084,428		67,089,681
Operating Segments \| Light Industrial
Segment Reporting Information [Line Items]
Revenues	21,358,864	17,783,216	58,604,838	53,692,954
Depreciation	23,446	27,690	76,372	80,231
Amortization	0	66,151	110,251	245,903
Operating income	1,560,895	1,108,842	3,948,874	3,000,444
Capital expenditures	44,018	2,463	87,990	71,262
Total assets	18,660,558		18,660,558		18,075,307
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Depreciation	51,923	49,148	152,608	147,797
Amortization	5,385	3,372	13,051	5,223
Capital expenditures	25,945	0	95,428	246,257
Total assets	6,329,375		6,329,375		$ 7,788,993
Corporate, Non-Segment \| Selling and Marketing Expense
Segment Reporting Information [Line Items]
Operating income	(212,877)	(119,097)	(541,467)	(371,906)
Corporate, Non-Segment \| General and Administrative Expense
Segment Reporting Information [Line Items]
Operating income	$ (1,358,489)	$ (1,494,106)	$ (3,488,841)	$ (4,585,854)

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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