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Schedule of Companys other investments (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012
--- | --- | ---
Investments | $ 1,736 | $ 2,426
Knight's Bridge Capital Partners Internet Fund No. 1 GP LLC [Member] |  |
Investments | 19 | 20
Polaroid Corporation [Member] |  |
Investments | $ 1,717 | $ 2,406

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