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INVESTMENTS (Detail) (USD $)
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3 Months Ended | |
|---|---|---|
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Jan. 31, 2013
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Oct. 31, 2012
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| Short-term Investments | $ 500,000 | |
| Available-for-sale Securities, Amortized Cost Basis | 16,200,000 | |
| Other than Temporary Impairment Losses, Investments | 10,818,000 | |
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Warrant [Member] | ZQX [Member]
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| Stock issued during the Period in Private Placement (in Shares) | 500,000 | |
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Investment in Videocon [Member]
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| Cost Method Investments | 5,382,000 | |
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ZQX [Member] | First Half [Member]
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| Investment Warrants, Exercise Price (in Dollars per share) | $ 0.37 | |
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ZQX [Member] | Second Half [Member]
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| Investment Warrants, Exercise Price (in Dollars per share) | $ 0.555 | |
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ZQX [Member]
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| Noncontrolling Interest, Ownership Percentage by Parent | 19.50% | |
| Stock issued during the Period in Private Placement (in Shares) | 800,000 | |
| Adjustments to Additional Paid in Capital, Stock Issued, Own-share Lending Arrangement, Issuance Costs | $ 91,000 |
| X | ||||||||||
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- Definition
Unregistered shares issued during the period in a private placement. No definition available.
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| X | ||||||||||
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- Definition
Exercise price of the warrants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of issuance costs recognized at the date of issuance of a share-lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The parent entity's interest in net assets of the subsidiary, expressed as a percentage. No definition available.
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| X | ||||||||||
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- Definition
Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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