INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2018
Intangible Assets, Net [Abstract]
Intangible assets, gross	$ 15,881		$ 15,881		$ 14,826
Less: Accumulated amortization	(2,923)		(2,923)		(2,479)
Intangible assets, net	12,958		12,958		12,347
Amortization expense	236	$ 201	444	$ 394
Customer Relationships [Member]
Intangible Assets, Net [Abstract]
Intangible assets, gross	13,032		$ 13,032		12,052
Customer Relationships [Member] | Minimum [Member]
Intangible Assets, Net [Abstract]
Life (in years)			15 years
Customer Relationships [Member] | Maximum [Member]
Intangible Assets, Net [Abstract]
Life (in years)			20 years
Trademarks/ Names [Member]
Intangible Assets, Net [Abstract]
Intangible assets, gross	2,141		$ 2,141		2,118
Life (in years)			20 years
Other [Member]
Intangible Assets, Net [Abstract]
Intangible assets, gross	$ 708		$ 708		$ 656
Other [Member] | Minimum [Member]
Intangible Assets, Net [Abstract]
Life (in years)			2 years
Other [Member] | Maximum [Member]
Intangible Assets, Net [Abstract]
Life (in years)			5 years