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FAIR VALUE MEASUREMENTS: (Assets and Liabilities Not Carried at Fair Value) (Details) (USD $)
In Thousands, unless otherwise specified |
May 31, 2013
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Nov. 30, 2012
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|---|---|---|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Convertible Debt, Carrying Value | $ 143,750 | $ 141,436 |
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Fair Value, Inputs, Level 2 [Member]
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| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Convertible debt, Fair Value | $ 167,735 |