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Note 5 - Government Grants (Details Textual) (USD $) | 3 Months Ended | 12 Months Ended | 1 Months Ended
--- | --- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2007 | Jul. 31, 2014 | Jul. 31, 2013 | Sep. 30, 2012
Revenue from Grants | $ 223,089 us-gaap_RevenueFromGrants | $ 322,086 us-gaap_RevenueFromGrants | $ 180,441 us-gaap_RevenueFromGrants | $ 157,340 us-gaap_RevenueFromGrants | $ 174,738 us-gaap_RevenueFromGrants | $ 1,004,211 us-gaap_RevenueFromGrants | $ 441,561 us-gaap_RevenueFromGrants | $ 797,040 us-gaap_RevenueFromGrants | $ 882,956 us-gaap_RevenueFromGrants | $ 2,417,550 us-gaap_RevenueFromGrants | $ 2,657,327 us-gaap_RevenueFromGrants |  |  |  |
First N I H Grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  |  |  |  |  | 624,689 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_FirstNIHGrantMember | 833,390 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_FirstNIHGrantMember | 2,227,924 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_FirstNIHGrantMember |  |  |  |
Grant Award |  |  |  |  |  |  |  |  |  |  |  | 20,400,000 govx_GrantAward / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_FirstNIHGrantMember |  |  |
Unused Grant Funds | 75,464 govx_UnusedGrantFunds / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_FirstNIHGrantMember |  |  |  |  |  |  |  | 75,464 govx_UnusedGrantFunds / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_FirstNIHGrantMember |  |  |  |  |  |
NIH Grants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  |  |  |  |  | 882,956 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_NIHGrantsMember | 2,417,550 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_NIHGrantsMember | 2,657,327 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_NIHGrantsMember |  |  |  |
SBIR Grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  |  |  |  |  | 258,267 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SBIRGrantMember | 154,563 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SBIRGrantMember | 0 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SBIRGrantMember |  |  |  |
Grant Award |  |  |  |  |  |  |  |  |  |  |  |  | 289,641 govx_GrantAward / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SBIRGrantMember | 276,690 govx_GrantAward / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SBIRGrantMember |
Unused Grant Funds | 153,501 govx_UnusedGrantFunds / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SBIRGrantMember |  |  |  |  |  |  |  | 153,501 govx_UnusedGrantFunds / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SBIRGrantMember |  |  |  |  |  |
Second N I H Grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  |  |  |  |  | 0 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SecondNIHGrantMember | 1,429,597 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SecondNIHGrantMember | 429,403 us-gaap_RevenueFromGrants / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SecondNIHGrantMember |  |  |  |
Grant Award |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,900,000 govx_GrantAward / us-gaap_HealthCareOrganizationRevenueSourcesAxis = govx_SecondNIHGrantMember

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- Definition Grant award. + References No definition available. + Details
Name: | govx_GrantAward
Namespace Prefix: | govx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Unused grant funds. + References No definition available. + Details
Name: | govx_UnusedGrantFunds
Namespace Prefix: | govx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(e)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_RevenueFromGrants
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_HealthCareOrganizationRevenueSourcesAxis=govx_FirstNIHGrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_HealthCareOrganizationRevenueSourcesAxis=govx_NIHGrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_HealthCareOrganizationRevenueSourcesAxis=govx_SBIRGrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_HealthCareOrganizationRevenueSourcesAxis=govx_SecondNIHGrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |