GOODWILL AND OTHER INTANGIBLE ASSETS (Details 3) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Trade names
Changes made to indefinite-lived intangible assets by reporting segment
Balance at the beginning of the period	$ 9,065,000
Foreign currency translation adjustment	88,000
Balance at the end of the period	9,153,000
Chlorovinyls | Trade names
Changes made to indefinite-lived intangible assets by reporting segment
Balance at the beginning of the period	364,000
Foreign currency translation adjustment	14,000
Balance at the end of the period	378,000
Building Products
Changes made to indefinite-lived intangible assets by reporting segment
Foreign currency translation adjustment	(1,684,000)	(1,684,000)
Goodwill and other intangible assets	71,200,000
Building Products | Trade names
Changes made to indefinite-lived intangible assets by reporting segment
Balance at the beginning of the period	8,701,000
Foreign currency translation adjustment	74,000
Balance at the end of the period	$ 8,775,000