Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Investing activities  
Acquisition of Trecora Chemical, Inc. cash acquired $ 107us-gaap_CashAcquiredFromAcquisition