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Note 5 - Government Grants (Details Textual) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jul. 31, 2014 | Jul. 31, 2013 | Sep. 30, 2012 | Sep. 30, 2007 | Jun. 30, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
SBIR Grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 258,267 | $ 154,563 | $ 0
Grant Award | $ 289,641 | $ 276,690 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unused Grant Funds |  |  |  |  |  | $ 153,501 |  |  |  |  |  |  |  |  |  | 153,501 |  |
NIH Grants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 882,956 | 2,417,550 | 2,657,327
First N I H Grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 624,689 | 833,390 | 2,227,924
Grant Award |  |  |  | $ 20,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unused Grant Funds |  |  |  |  |  | 75,464 |  |  |  |  |  |  |  |  |  | 75,464 |  |
Second N I H Grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 1,429,597 | 429,403
Grant Award |  |  | $ 1,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from Grants |  |  |  |  | $ 71,474 | $ 223,089 | $ 322,086 | $ 180,441 | $ 157,340 | $ 174,738 | $ 1,004,211 | $ 441,561 | $ 797,040 | $ 174,898 | $ 337,781 | $ 882,956 | $ 2,417,550 | $ 2,657,327
Unused Grant Funds |  |  |  |  | $ 353,652 |  |  |  |  |  |  |  |  | $ 353,652 |  |  |  |

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

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

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

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

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