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Note 8 - Common Stock - Convertible Stock Issued (Details)
1 Months Ended 12 Months Ended
Jan. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Series A Convertible Preferred Stock [Member]        
Conversion of preferred stock (in shares) 202,857us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= govx_SeriesAConvertiblePreferredStockMember
202,857us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= govx_SeriesAConvertiblePreferredStockMember
2,048,570us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= govx_SeriesAConvertiblePreferredStockMember
1,882,667us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= govx_SeriesAConvertiblePreferredStockMember
Series B Convertible Preferred Stock [Member]        
Conversion of preferred stock (in shares)   4,428,571us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= govx_SeriesBConvertiblePreferredStockMember
0us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= govx_SeriesBConvertiblePreferredStockMember
0us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= govx_SeriesBConvertiblePreferredStockMember