COMMITMENTS AND CONTINGENCIES, LOSS CONTINGENCIES (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2015
Loss Contingencies [Line Items]
Loss Contingency, Settlement Agreement, Terms			As a result of the settlement: (a) the Tech Lawsuit was dismissed with prejudice on January 12, 2016, (b) $3,109 of the funds that remained in escrow from the sale were disbursed to the Company and the remaining amount of escrow funds was retained by Tech Investments, (c) Tech Investments assumed an approximate $1,167 payment obligation of the Company to a predecessor owner of OMT that remained under a purchase agreement the Company acquired as part of the Company’s acquisition of Valent; (d) locked-up shares representing partial consideration for the purchase price paid by the Company were released to Tech Investments; and (e) all parties entered into a mutual release of certain claims and disputes. The settlement also resulted in the Company assuming other liabilities of $500, collecting a previously recorded receivable of $389 and recording other expenses of $40.
Gain (Loss) Related to Litigation Settlement	$ 3,325		$ 3,347
Environmental Protection Agency [Member]
Loss Contingencies [Line Items]
Environmental Penalties Paid		$ 694
Unfavorable Regulatory Action [Member]
Loss Contingencies [Line Items]
Environmental Penalties Paid		$ 175