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Short Term Debt - Short Term Debt Three Months (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Debt Disclosure [Abstract]
Interest UBS short-term credit line	$ 8	$ 13
Interest RBC short-term margin loan		4
Total interest, short-term margin loans	$ 8	$ 17