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2. Summary of significant accounting policies (Tables)
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6 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2012
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| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||||||||||||||
| Investments and liabilities of the Company's financial assets measured and recorded at fair value | The following table presents certain investments and liabilities of the Company’s financial assets measured and recorded at fair value on the Company’s condensed consolidated balance sheets on a recurring basis and their level within the fair value hierarchy as of June 30, 2012 and 2011.
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