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CONCENTRATION OF RISK, Long-Lived Assets by Geographic Area (Details) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 USD ($) supplier | Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items] |  |
Total long-lived assets | $ 22,362 | $ 22,407
Supplier Concentration Risk [Member] |  |
Segment Reporting Information [Line Items] |  |
Number of suppliers from which chemical materials were purchased | supplier | 1 |
UNITED STATES |  |
Segment Reporting Information [Line Items] |  |
Total long-lived assets | $ 22,167 | 22,187
Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Total long-lived assets | $ 195 | $ 220

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- Definition 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. + References 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=51669610&loc=d3e9038-108599 + Details
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