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Short Term Debt - Short Term Debt Interest (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Notes to Financial Statements
Interest UBS short-term credit line	$ 3,000	$ 5,000	$ 19,000	$ 36,000
Interest RBC short-term margin loan		7,000		21,000
Total interest, short-term margin loans	$ 3,000	$ 12,000	$ 19,000	$ 57,000