CONCENTRATION OF RISK, Long-Lived Assets by Geographic Area (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended
Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Supplier Concentration Risk [Member] supplier	Mar. 31, 2014 UNITED STATES	Dec. 31, 2013 UNITED STATES	Mar. 31, 2014 Other [Member]	Dec. 31, 2013 Other [Member]
Segment Reporting Information [Line Items]
Total long-lived assets	$ 15,004	$ 14,893		$ 14,792	$ 14,660	$ 212	$ 233
Number of suppliers from which chemical materials were purchased			1

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 41

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599

Name:	us-gaap_NoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant