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GENERAL (Schedule of Acquisition of Canadian Quartz Holdings Inc.) (Details) (White-Wood Distributors Ltd. [Member])
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
May 01, 2011
USD ($)
May 01, 2011
CAD
Business Acquisition [Line Items]      
Inventory   $ 544  
Intangible assets   807  
Goodwill   754  
Total assets acquired   2,105  
Total liabilities assumed       
Net assets acquired   2,105  
Total purchase price   $ 2,105 2,000
Expected useful life 4 years 7 months 12 days