GOODWILL AND INTANGIBLE ASSETS - Other Intangible Assets - Additional Information (Details) - Adesis, Inc. [Member] - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	$ 16,840,000		$ 16,840,000
Amortization expense related to other intangible assets	345,000	$ 346,000	687,000	$ 688,000
Future amortization expense of other intangible assets, remainder of fiscal year	1,400,000		1,400,000
Future amortization expense of other intangible assets, fiscal year 2	1,400,000		1,400,000
Future amortization expense of other intangible assets, fiscal year 3	1,400,000		1,400,000
Future amortization expense of other intangible assets, fiscal year 4	1,400,000		1,400,000
Future amortization expense of other intangible assets, fiscal year 5	1,400,000		1,400,000
Future amortization expense of other intangible assets, thereafter	7,800,000		7,800,000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	10,520,000		$ 10,520,000
Estimated useful life			11 years 6 months
Internally-developed IP, Processes and Recipes [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	4,820,000		$ 4,820,000
Estimated useful life			15 years
Trade Name/Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets	$ 1,500,000		$ 1,500,000
Estimated useful life			10 years