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Short-Term Debt - Detail Short Term Debt (Details) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Debt Disclosure [Abstract] |  |  |  |
Interest UBS short-term credit line | $ 8,000 | $ 13,000 | $ 16,000 | $ 24,000
Interest RBC short-term margin loan |  | 11,000 |  | 15,000
Total interest, short-term margin loans | $ 8,000 | $ 24,000 | $ 16,000 | $ 39,000

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- Details
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- Definition No authoritative reference available. + References No definition available. + Details
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- Definition No authoritative reference available. + References No definition available. + Details
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- Definition No authoritative reference available. + References No definition available. + Details
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