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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 $ 223,089us-gaap_RevenueFromGrants $ 322,086us-gaap_RevenueFromGrants $ 180,441us-gaap_RevenueFromGrants $ 157,340us-gaap_RevenueFromGrants $ 174,738us-gaap_RevenueFromGrants $ 1,004,211us-gaap_RevenueFromGrants $ 441,561us-gaap_RevenueFromGrants $ 797,040us-gaap_RevenueFromGrants $ 882,956us-gaap_RevenueFromGrants $ 2,417,550us-gaap_RevenueFromGrants $ 2,657,327us-gaap_RevenueFromGrants        
First N I H Grant [Member]                              
Revenue from Grants                 624,689us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_FirstNIHGrantMember
833,390us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_FirstNIHGrantMember
2,227,924us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_FirstNIHGrantMember
       
Grant Award                       20,400,000govx_GrantAward
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_FirstNIHGrantMember
     
Unused Grant Funds 75,464govx_UnusedGrantFunds
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_FirstNIHGrantMember
              75,464govx_UnusedGrantFunds
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_FirstNIHGrantMember
           
NIH Grants [Member]                              
Revenue from Grants                 882,956us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_NIHGrantsMember
2,417,550us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_NIHGrantsMember
2,657,327us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_NIHGrantsMember
       
SBIR Grant [Member]                              
Revenue from Grants                 258,267us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SBIRGrantMember
154,563us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SBIRGrantMember
0us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SBIRGrantMember
       
Grant Award                         289,641govx_GrantAward
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SBIRGrantMember
276,690govx_GrantAward
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SBIRGrantMember
 
Unused Grant Funds 153,501govx_UnusedGrantFunds
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SBIRGrantMember
              153,501govx_UnusedGrantFunds
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SBIRGrantMember
           
Second N I H Grant [Member]                              
Revenue from Grants                 0us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SecondNIHGrantMember
1,429,597us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SecondNIHGrantMember
429,403us-gaap_RevenueFromGrants
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SecondNIHGrantMember
       
Grant Award                             $ 1,900,000govx_GrantAward
/ us-gaap_HealthCareOrganizationRevenueSourcesAxis
= govx_SecondNIHGrantMember