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Note 8 - Common Stock - Outstanding Stock Purchase Warrants (Details) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Warrants outstanding (in shares) 56,442,157us-gaap_ClassOfWarrantOrRightOutstanding 5,108,826us-gaap_ClassOfWarrantOrRightOutstanding
Warrants outstanding, weighted average exercise price (in dollars per share) $ 0.24us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 $ 0.66us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Warrants exercisable (in shares) 39,775,491govx_ClassOfWarrantOrRightExercisable  
Warrants exercisable, weighted average exercise price (in dollars per share) $ 0.25govx_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsExercisable  
Series D Warrants [Member] | Placement Agent for Offering [Member]    
Warrants outstanding (in shares) 1,333,333us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_ClassOfWarrantOrRightAxis
= govx_SeriesDWarrantsMember
/ us-gaap_CounterpartyNameAxis
= govx_PlacementAgentForOfferingMember		 [1]  
Warrants outstanding, weighted average exercise price (in dollars per share) $ 0.22us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= govx_SeriesDWarrantsMember
/ us-gaap_CounterpartyNameAxis
= govx_PlacementAgentForOfferingMember		 [1]  
Series D Warrants [Member]    
Warrants outstanding (in shares) 16,666,666us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_ClassOfWarrantOrRightAxis
= govx_SeriesDWarrantsMember		 [1]  
Warrants outstanding, weighted average exercise price (in dollars per share) $ 0.22us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= govx_SeriesDWarrantsMember		 [1]  
Series E Warrants [Member]    
Warrants outstanding (in shares) 16,666,666us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_ClassOfWarrantOrRightAxis
= govx_SeriesEWarrantsMember		 [1]  
Warrants outstanding, weighted average exercise price (in dollars per share) $ 0.18us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= govx_SeriesEWarrantsMember		 [1]  
Series F Warrants [Members]    
Warrants outstanding (in shares) 16,666,666us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_ClassOfWarrantOrRightAxis
= govx_SeriesFWarrantsMember		 [1]  
Warrants outstanding, weighted average exercise price (in dollars per share) $ 0.22us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= govx_SeriesFWarrantsMember		 [1]  
[1] See discussion under “Series C Convertible Preferred Stock” in Note 7.