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Stockholder's Equity - Significant Option Groups Outstanding and Exercisable Option and its Price and Contractual Life (Detail) (USD $) | 9 Months Ended
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Aug. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Outstanding, Weighted Average Remaining Contractual Life (Years) | 6 years 26 days
Outstanding, Outstanding | 988,097
Outstanding, Weighted Average Exercise Price | $ 2.13
Exercisable, Outstanding | 972,270
Exercisable, Weighted Average Exercise Price | $ 2.13
Range 1 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | $ 0.42
Range of Exercise Prices Maximum | $ 1.00
Outstanding, Weighted Average Remaining Contractual Life (Years) | 11 months 12 days
Outstanding, Outstanding | 2,500
Outstanding, Weighted Average Exercise Price | $ 0.68
Exercisable, Outstanding | 2,500
Exercisable, Weighted Average Exercise Price | $ 0.68
Range 2 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | $ 1.01
Range of Exercise Prices Maximum | $ 2.00
Outstanding, Weighted Average Remaining Contractual Life (Years) | 6 years 8 months 1 day
Outstanding, Outstanding | 474,263
Outstanding, Weighted Average Exercise Price | $ 1.72
Exercisable, Outstanding | 471,764
Exercisable, Weighted Average Exercise Price | $ 1.72
Range 3 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Range of Exercise Prices Minimum | $ 2.01
Range of Exercise Prices Maximum | $ 3.00
Outstanding, Weighted Average Remaining Contractual Life (Years) | 5 years 6 months 15 days
Outstanding, Outstanding | 511,334
Outstanding, Weighted Average Exercise Price | $ 2.52
Exercisable, Outstanding | 498,006
Exercisable, Weighted Average Exercise Price | $ 2.53

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- Definition Share based compensation shares authorized under stock option plan exercise price range outstanding options weighted average remaining contractual term. + References No definition available. + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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