CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Gold and silver bullion, market value (in dollars)		$ 2,062
Common stock, par value
Common stock, shares authorized	500,000	500,000
Common, shares issued	263,626	212,646
Common, shares outstanding	263,626	212,646
Exchangeable, shares issued	33,533	83,379
Exchangeable, shares outstanding	33,533	83,379