Represents number of convertible preferred stock and related warrants authorized for issuance.

No definition available.

Name:	govx_ConvertiblePreferredStockAndRelatedWarrantsAuthorized
Namespace Prefix:	govx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents number of convertible preferred stock and related warrants issued during the period.

+ References

No definition available.

+ Details

Name:	govx_ConvertiblePreferredStockAndRelatedWarrantsIssued
Namespace Prefix:	govx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Conversion price related to convertible preferred stock.

+ References

No definition available.

+ Details

Name:	govx_ConvertiblePreferredStockConversionPrice1
Namespace Prefix:	govx_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the conversion price pf convertible preferred stock represented as percentage of volume weighted average price of the common stock.

+ References

No definition available.

+ Details

Name:	govx_ConvertiblePreferredStockConversionPricePercentageOfVolumeWeightedAveragePriceOfTheCommonStock
Namespace Prefix:	govx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents number of series C and series E preferred stock exchanged for series F convertible preferred stock.

+ References

No definition available.

+ Details

Name:	govx_NumberOfSeriesCAndSeriesEPreferredStockExchangedForSeriesFConvertiblePreferredStock
Namespace Prefix:	govx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the maximum amount of proceeds from issuance of convertible preferred stock and related warrants during the period.

+ References

No definition available.

+ Details

Name:	govx_ProceedsFromIssuanceOfConvertiblePreferredStockAndRelatedWarrantsMaximum
Namespace Prefix:	govx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from issuance of callable preferred stock, after deductions of certain expenses, which is identified as being convertible to another type of financial security at the option of the issuer or the holder.

+ References

No definition available.

+ Details

Name:	govx_ProceedsFromIssuanceOfConvertiblePreferredStockNetOfIssuanceCost
Namespace Prefix:	govx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

+ Details

Name:	us-gaap_ConversionOfStockSharesConverted1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

+ Details

Name:	us-gaap_ConversionOfStockSharesIssued1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

+ Details

Name:	us-gaap_PreferredStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

+ References

+ Details

Name:	us-gaap_PreferredStockSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

+ References

+ Details

Name:	us-gaap_PreferredStockSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=govx_SeriesIWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=govx_SeriesGWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementEquityComponentsAxis=govx_SeriesGConvertiblePreferredStockAndRelatedWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConversionOfStockByUniqueDescriptionAxis=govx_ConversionOfSeriesCPreferredStockIntoCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConversionOfStockByUniqueDescriptionAxis=govx_ConversionOfSeriesCPreferredStockIntoSeriesFPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConversionOfStockByUniqueDescriptionAxis=govx_ConversionOfSeriesDPreferredStockIntoCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConversionOfStockByUniqueDescriptionAxis=govx_ConversionOfSeriesEPreferredStockIntoSeriesFPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConversionOfStockByUniqueDescriptionAxis=govx_ConversionOfSeriesFPreferredStockIntoCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=govx_SeriesBConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=govx_SeriesCConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=govx_SeriesDConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=govx_SeriesEConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=govx_SeriesFConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=govx_SeriesGConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 9 - Preferred Stock (Details Textual) - USD ($)						1 Months Ended			2 Months Ended	3 Months Ended		6 Months Ended
Note 9 - Preferred Stock (Details Textual) - USD ($)	Jun. 19, 2019	Apr. 26, 2019	Feb. 26, 2019	Feb. 25, 2019	Feb. 18, 2019	Feb. 28, 2019	Sep. 30, 2018	Mar. 31, 2018	Feb. 28, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Preferred Stock, Shares Authorized										10,000,000		10,000,000		10,000,000
Preferred Stock, Par or Stated Value Per Share										$ 0.01		$ 0.01		$ 0.01
Preferred Stock, Shares Outstanding, Ending Balance										3,402		3,402		3,450
Series I Warrants [Member]
Convertible Preferred Stock and Related Warrants Issued			33,334
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 7.50
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			66,668
Series G Warrants [Member]
Warrants and Rights Outstanding, Term			5 years
Series G Convertible Preferred Stock and Related Warrants [Member]
Convertible Preferred Stock and Related Warrants, Authorized				1,000
Proceeds from Issuance of Convertible Preferred Stock and Related Warrants, Maximum	$ 500,000	$ 500,000	$ 250,000	$ 1,000,000
Convertible Preferred Stock and Related Warrants Issued	500	500	500
Conversion of Series C Preferred Stock Into Common Stock [Member]
Conversion of Stock, Shares Converted									587			587
Conversion of Stock, Shares Issued									78,280			78,280
Conversion of Series C Preferred Stock Into Series F Preferred Stock [Member]
Conversion of Stock, Shares Converted						1,563						1,563
Conversion of Series D Preferred Stock Into Common Stock [Member]
Conversion of Stock, Shares Converted											345		795
Conversion of Stock, Shares Issued											46,000		106,000
Conversion of Series E Preferred Stock Into Series F Preferred Stock [Member]
Conversion of Stock, Shares Converted						1,200						1,200
Conversion of Series F Preferred Stock Into Common Stock [Member]
Conversion of Stock, Shares Converted										281	253,300	461	293,300
Conversion of Stock, Shares Issued												293,300
Series B Convertible Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share										$ 1,000		$ 1,000
Conversion of Stock, Shares Converted										0	0	0	0
Preferred Stock, Shares Outstanding, Ending Balance										100		100		100
Convertible Preferred Stock, Conversion Price1										$ 175		$ 175
Series C Convertible Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share										$ 1,000		$ 1,000
Conversion of Stock, Shares Converted											0		0
Preferred Stock, Shares Outstanding, Ending Balance														2,150
Series D Convertible Preferred Stock [Member]
Preferred Stock, Shares Outstanding, Ending Balance										0		0
Series E Convertible Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share										$ 1,000		$ 1,000
Preferred Stock, Shares Outstanding, Ending Balance														1,200
Stock Issued During Period, Shares, New Issues							600	600
Proceeds From Issuance Of Convertible Preferred Stock, Net of Issuance Cost							$ 600,000	$ 590,000
Series F Convertible Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share					$ 1,000					$ 1,000		$ 1,000
Preferred Stock, Shares Outstanding, Ending Balance										2,302		2,302
Convertible Preferred Stock, Conversion Price1					$ 7.50
Number of Series C and Series E Preferred Stock Exchanged for Series F Convertible Preferred Stock					2,763
Convertible Preferred Stock, Conversion Price, Percentage of Volume Weighted Average Price of the Common Stock					90.00%
Series G Convertible Preferred Stock [Member]
Preferred Stock, Par or Stated Value Per Share				$ 1,000						$ 1,000		$ 1,000
Preferred Stock, Shares Outstanding, Ending Balance										1,000		1,000
Convertible Preferred Stock, Conversion Price1				$ 7.50
Convertible Preferred Stock, Conversion Price, Percentage of Volume Weighted Average Price of the Common Stock				90.00%