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Asset Liquidation Investments and Other Investments (Details 1) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Investments | $ 1,729 | $ 2,426
Knight's Bridge Capital Partners Internet Fund No. 1 GP LLC [Member] |  |
Investments | 21 | 20
Polaroid Corporation [Member] |  |
Investments | $ 1,708 | $ 2,406

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