Note 9 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Income Taxes Paid	$ 0	$ 0
Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount		1,600
Domestic Tax Authority [Member]
Operating Loss Carryforwards, Total		75,200
Operating Loss Carryforwards, Subject to Expiration		$ 48,900

Amount of operating loss carryforward subject to expiration, before tax effects, available to reduce future taxable income under enacted tax laws.

No definition available.

+ Details

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Namespace Prefix:	govx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4297-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585

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Balance Type:	credit
Period Type:	duration

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319

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- Definition

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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Data Type:	xbrli:monetaryItemType
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Namespace Prefix:
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- Details

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Balance Type:
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