GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016
Finite-Lived Intangible Assets [Line Items]
Intangible assets, original amount	$ 5,116		$ 1,631
Intangible assets, accumulated amortization	(954)		(502)
Total	4,162		1,129
Intangible assets, amortization expense	500	$ 100
Goodwill [Roll Forward]
Balance at beginning of period	1,039
Goodwill acquired during the nine months ended March 31, 2017	5,685
Balance at end of period	6,724
Future amortization of intangible assets [Abstract]
2018	611
2019	611
2020	611
2021	611
2022	593
Thereafter	1,125
Total	$ 4,162		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	(382)		(60)
Total	2,625		520
Future amortization of intangible assets [Abstract]
Total	2,625		520
Permits [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, original amount	1,339		668
Intangible assets, accumulated amortization	(264)		(191)
Total	1,075		477
Future amortization of intangible assets [Abstract]
Total	$ 1,075		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	(261)		(251)
Total	122		132
Future amortization of intangible assets [Abstract]
Total	$ 122		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	(29)		0
Total	241		0
Future amortization of intangible assets [Abstract]
Total	$ 241		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	(18)		0
Total	99		0
Future amortization of intangible assets [Abstract]
Total	$ 99		$ 0