GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Intangible assets, original amount	$ 4,988		$ 1,631
Intangible assets, accumulated amortization	(653)		(502)
Total	4,335		1,129
Intangible assets, amortization expense	200	$ 20
Goodwill [Roll Forward]
Balance at June 30, 2016	1,039
Goodwill acquired during the three months ended September 30, 2016	5,685
Balance at September 30, 2016	6,724
Future amortization of intangible assets [Abstract]
2017	616
2018	615
2019	615
2020	615
2021	615
Thereafter	1,259
Total	$ 4,335		1,129
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	7 years
Intangible assets, original amount	$ 3,007		580
Intangible assets, accumulated amortization	(167)		(60)
Total	2,840		520
Future amortization of intangible assets [Abstract]
Total	2,840		520
Permits [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, original amount	1,211		668
Intangible assets, accumulated amortization	(215)		(191)
Total	996		477
Future amortization of intangible assets [Abstract]
Total	$ 996		477
Permits [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	6 years
Permits [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	15 years
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, original amount	$ 383		383
Intangible assets, accumulated amortization	(255)		(251)
Total	128		132
Future amortization of intangible assets [Abstract]
Total	$ 128		132
Patents [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	5 years
Patents [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	17 years
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	7 years
Intangible assets, original amount	$ 270		0
Intangible assets, accumulated amortization	(10)		0
Total	260		0
Future amortization of intangible assets [Abstract]
Total	$ 260		0
Non-compete [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	5 years
Intangible assets, original amount	$ 117		0
Intangible assets, accumulated amortization	(6)		0
Total	111		0
Future amortization of intangible assets [Abstract]
Total	$ 111		$ 0