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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

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