Related Party Transactions - Additional Information (Detail) (USD $)
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6 Months Ended | ||
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Nov. 30, 2014
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Nov. 30, 2013
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May 31, 2014
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Related Party Transaction [Line Items] | |||
Face amount of notes | $ 0cydy_ConvertibleNotesFaceAmount | $ 1,200,000cydy_ConvertibleNotesFaceAmount | |
Debt conversion price | $ 0.75us-gaap_DebtInstrumentConvertibleConversionPrice1 | ||
Warrants to purchase common shares, shares | 250,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights | ||
Warrants exercise price per share | $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 | ||
Proceeds from exercise of warrants | 777,333us-gaap_ProceedsFromWarrantExercises | 50,000us-gaap_ProceedsFromWarrantExercises | |
Convertible Debt | |||
Related Party Transaction [Line Items] | |||
Warrants to purchase common shares, shares |
1,413,333us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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Proceeds from exercise of warrants |
777,333us-gaap_ProceedsFromWarrantExercises / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember |
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Alpha Venture Capital Partners, L.P. | |||
Related Party Transaction [Line Items] | |||
Face amount of notes |
2,000,000cydy_ConvertibleNotesFaceAmount / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = cydy_AlphaVentureCapitalPartnersLPMember |
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Interest rate on convertible notes |
5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = cydy_AlphaVentureCapitalPartnersLPMember |
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Convertible note maturity date | Sep. 26, 2016 | ||
Debt conversion price |
$ 1.00us-gaap_DebtInstrumentConvertibleConversionPrice1 / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = cydy_AlphaVentureCapitalPartnersLPMember |
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Percentage reduction to conversion price |
10.00%cydy_PercentageOfCurrentConversionPriceLowerThanClosingSalePrice / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = cydy_AlphaVentureCapitalPartnersLPMember |
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Sale price of common stock |
$ 0.9444us-gaap_SharePrice / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = cydy_AlphaVentureCapitalPartnersLPMember |
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Additional convertible promissory notes that may be issued |
6,000,000cydy_AdditionalDebtInstrumentFaceAmountThatMayBeIssued / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = cydy_AlphaVentureCapitalPartnersLPMember |
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Warrants to purchase common shares, shares |
250,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = cydy_AlphaVentureCapitalPartnersLPMember |
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Warrants exercise price per share |
$ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = cydy_AlphaVentureCapitalPartnersLPMember |
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Warrants, expiration date | Dec. 31, 2019 | ||
Director | Convertible Debt | |||
Related Party Transaction [Line Items] | |||
Convertible notes issued, principal amount |
1,000,000us-gaap_NotesIssued1 / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember |
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Common stock warrants issued |
1,333,333us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember |
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Proceeds from exercise of warrants |
$ 733,333us-gaap_ProceedsFromWarrantExercises / us-gaap_LongtermDebtTypeAxis = us-gaap_ConvertibleDebtMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember |
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Convertible notes term | 3 years |
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- Definition
Additional Debt Instrument, Face Amount that May be Issued No definition available.
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- Definition
Class of warrant or right expiry date of warrant or right exercisable. No definition available.
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Convertible Notes Face Amount No definition available.
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- Definition
Percentage Of Current Conversion Price Lower Than Closing Sale Price No definition available.
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- Definition
Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition
The fair value of notes issued in noncash investing and financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The cash inflow associated with the amount received from holders exercising their stock warrants. No definition available.
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- Definition
Price of a single share of a number of saleable stocks of a company. No definition available.
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