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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Gearing Cicero Ave. facility
FAIR VALUE MEASUREMENTS
Gain on sale	$ 23
Nonrecurring
FAIR VALUE MEASUREMENTS
Total assets at fair value		$ 1,852	$ 580
Nonrecurring | Gearing Cicero Ave. facility
FAIR VALUE MEASUREMENTS
Property plant and equipment at fair value		560	560
Nonrecurring | Services assets
FAIR VALUE MEASUREMENTS
Property plant and equipment at fair value			20
Nonrecurring | Level 3
FAIR VALUE MEASUREMENTS
Total assets at fair value		1,852	580
Nonrecurring | Level 3 | Gearing Cicero Ave. facility
FAIR VALUE MEASUREMENTS
Property plant and equipment at fair value			560
Nonrecurring | Level 3 | Services assets
FAIR VALUE MEASUREMENTS
Property plant and equipment at fair value			$ 20
Customer relationships
FAIR VALUE MEASUREMENTS
Finite lived intangible assets at fair Value		1,852
Customer relationships | Level 3
FAIR VALUE MEASUREMENTS
Finite lived intangible assets at fair Value		$ 1,852

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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