ACCRUED LIABILITIES - Schedule of Significant Estimated Accrued Rebates Reserve for Cash Discounts and Product Returns (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Accrued Rebates [Member]
Accrued Liabilities [Line Items]
Beginning Balance	$ 2,538	$ 2,935
Provision for Current Period Sales	2,566	6,250
Provision for Prior Period Sales		239
Actual Returns/ Credits Related to Current Period Sales	(18)	(3,712)
Actual Returns/ Credits Related to Prior Period Sales	(2,644)	(3,174)
Outstanding Balance	2,442	2,538
Reserve for Cash Discounts [Member]
Accrued Liabilities [Line Items]
Beginning Balance	258	215
Provision for Current Period Sales	573	1,821
Provision for Prior Period Sales		41
Actual Returns/ Credits Related to Current Period Sales	(229)	(1,563)
Actual Returns/ Credits Related to Prior Period Sales	(258)	(256)
Outstanding Balance	344	258
Product returns [Member]
Accrued Liabilities [Line Items]
Beginning Balance	296	296
Outstanding Balance	$ 296	$ 296