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Note 8 - Common Stock - Common Stock Reserved for Future Issuance (Details) | Dec. 31, 2014
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Common Stock, Reserved for Future Issuance (in shares) | 6,592,070 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Employee Stock Option [Member] |
Common Stock, Reserved for Future Issuance (in shares) | 5,108,826 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_StatementEquityComponentsAxis = us-gaap_EmployeeStockOptionMember
Warrant [Member] |
Common Stock, Reserved for Future Issuance (in shares) | 1,197,529 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
Series B Convertible Preferred Stock [Member] |
Common Stock, Reserved for Future Issuance (in shares) | 285,715 us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_StatementEquityComponentsAxis = govx_SeriesBConvertiblePreferredStockMember

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- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | us-gaap_StatementEquityComponentsAxis=govx_SeriesBConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_WarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |