GOODWILL (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 25, 2016	Dec. 27, 2015
Goodwill [Line Items]
Goodwill	$ 17,970,049	$ 9,184,659	$ 9,184,659
Goodwill from acquisitions	8,785,390
Multifamily
Goodwill [Line Items]
Goodwill	1,073,755	1,073,755	1,073,755
Goodwill from acquisitions	0
Professional
Goodwill [Line Items]
Goodwill	11,871,474	3,086,084	3,086,084
Goodwill from acquisitions	0
Commercial
Goodwill [Line Items]
Goodwill	5,024,820	$ 5,024,820	$ 5,024,820
Goodwill from acquisitions	$ 8,785,390