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Note 14 - Subsequent Event (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified | 1 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 27, 2015 | Dec. 31, 2014 | May 14, 2013 | Apr. 30, 2013 | Jan. 17, 2013 | Dec. 31, 2012
Subsequent Events [Abstract] |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  | $ 0.66 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 | $ 0.50 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 | $ 0.60 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 | $ 0.60 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 | $ 0.75 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Series C Convertible Preferred Stock [Member] | Subsequent Event [Member] |  |  |  |  |  |
Subsequent Events [Abstract] |  |  |  |  |  |
Proceeds from Issuance of Convertible Preferred Stock | $ 3.00 us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock / us-gaap_StatementClassOfStockAxis = govx_SeriesCConvertiblePreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Convertible Preferred Stock, Conversion Price Per Share | $ 0.18 govx_ConvertiblePreferredStockConversionPricePerShare / us-gaap_StatementClassOfStockAxis = govx_SeriesCConvertiblePreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Convertible Preferred Stock, Total Conversion Shares | 16,666,666 govx_ConvertiblePreferredStockTotalConversionShares / us-gaap_StatementClassOfStockAxis = govx_SeriesCConvertiblePreferredStockMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Series D Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |
Subsequent Events [Abstract] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 16,666,666 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = govx_SeriesDWarrantsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 0.22 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = govx_SeriesDWarrantsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Series D Warrants [Member] | Placement Agent for Offering [Member] | Subsequent Event [Member] |  |  |  |  |  |
Subsequent Events [Abstract] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 1,333,333 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = govx_SeriesDWarrantsMember / us-gaap_CounterpartyNameAxis = govx_PlacementAgentForOfferingMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 0.22 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = govx_SeriesDWarrantsMember / us-gaap_CounterpartyNameAxis = govx_PlacementAgentForOfferingMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Series E Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |
Subsequent Events [Abstract] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 16,666,666 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = govx_SeriesEWarrantsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 0.18 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = govx_SeriesEWarrantsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Series F Warrants [Members] | Subsequent Event [Member] |  |  |  |  |  |
Subsequent Events [Abstract] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | 16,666,666 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_ClassOfWarrantOrRightAxis = govx_SeriesFWarrantsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 0.22 us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_ClassOfWarrantOrRightAxis = govx_SeriesFWarrantsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |  |  |  |  |

X
- Definition Convertible preferred stock, conversion price per share. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

X
- Definition Convertible preferred stock total conversion shares. + References No definition available. + Details
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Namespace Prefix: | govx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | instant

X
- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 2 -Article 4 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
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X
- Definition The cash inflow from issuance of preferred stocks identified as being convertible into another form of financial instrument, typically the entity's common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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Balance Type: | debit
Period Type: | duration

X
- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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X
- Details
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