GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($)	6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Original Amount	$ 5,198,000		$ 5,150,000
Accumulated Amortization	(1,408,000)		(1,104,000)
Net Amount	3,790,000		4,046,000
Intangible assets, amortization expense	300,000	$ 300,000
Changes in goodwill	0
Future amortization of intangible assets [Abstract]
2018	606,000
2019	606,000
2020	606,000
2021	592,000
2022	561,000
Thereafter	819,000
Net Amount	$ 3,790,000		4,046,000
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	7 years
Original Amount	$ 3,007,000		3,007,000
Accumulated Amortization	(704,000)		(490,000)
Net Amount	2,303,000		2,517,000
Future amortization of intangible assets [Abstract]
Net Amount	2,303,000		2,517,000
Permits
Finite-Lived Intangible Assets [Line Items]
Original Amount	1,421,000		1,373,000
Accumulated Amortization	(340,000)		(288,000)
Net Amount	1,081,000		1,085,000
Future amortization of intangible assets [Abstract]
Net Amount	$ 1,081,000		1,085,000
Permits | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	6 years
Permits | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	15 years
Patents
Finite-Lived Intangible Assets [Line Items]
Original Amount	$ 383,000		383,000
Accumulated Amortization	(271,000)		(264,000)
Net Amount	112,000		119,000
Future amortization of intangible assets [Abstract]
Net Amount	$ 112,000		119,000
Patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	5 years
Patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	17 years
Tradename
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	7 years
Original Amount	$ 270,000		270,000
Accumulated Amortization	(58,000)		(39,000)
Net Amount	212,000		231,000
Future amortization of intangible assets [Abstract]
Net Amount	$ 212,000		231,000
Non-compete
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Lives	5 years
Original Amount	$ 117,000		117,000
Accumulated Amortization	(35,000)		(23,000)
Net Amount	82,000		94,000
Future amortization of intangible assets [Abstract]
Net Amount	$ 82,000		$ 94,000