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Marketable securities (Tables)
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3 Months Ended | |||||||||||||||||||||||||||||||||
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Mar. 31, 2013
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| Marketable securities | ||||||||||||||||||||||||||||||||||
| Schedule of investments in available-for-sale securities |
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| Schedule of cost and market value of the company's investments determined by contractual maturity |
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| X | ||||||||||
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- Definition
Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. No definition available.
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