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Notes Receivable (Details) - (Table) (Note receivable – Seller of SM Canada [Member])
In Thousands, unless otherwise specified
Mar. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Mar. 31, 2012
USD ($)
Mar. 31, 2012
CAD
Due from $ 2,461 $ 3,171 $ 3,085 3,107