XML 58 R51.htm IDEA: XBRL DOCUMENT
v3.24.3

Reverse Recapitalization -Private Warrants and Public warrants - Additional Information (Details) - shares | 1 Months Ended | 9 Months Ended
--- | --- | ---
Nov. 30, 2021 | Sep. 30, 2024
Reverse Recapitalization |  |
Number of warrants issued |  | 26,273,000
Concord III | Private placement warrants |  |
Reverse Recapitalization |  |
Number of warrants issued | 9,400,000 |
Concord III | Public warrants |  |
Reverse Recapitalization |  |
Number of warrants issued | 17,250,000 |
Legacy G C T | Private placement and public warrants | Sponsor |  |
Reverse Recapitalization |  |
Number of warrants vested and retained | 4,492,650 |
Number of warrants reallocated to others | 2,087,350 |
Number of warrants forfeited | 2,820,000 |

X
- Definition Number of warrants forfeited during the period. + References No definition available. + Details
Name: | gcts_ClassOfWarrantOrRightForfeited
Namespace Prefix: | gcts_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of warrants issued during the period. + References No definition available. + Details
Name: | gcts_ClassOfWarrantOrRightIssued
Namespace Prefix: | gcts_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of warrants reallocated to others during the period. + References No definition available. + Details
Name: | gcts_ClassOfWarrantOrRightReallocatedToOthers
Namespace Prefix: | gcts_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of warrants vested and retained during the period. + References No definition available. + Details
Name: | gcts_ClassOfWarrantOrRightVestedAndRetained
Namespace Prefix: | gcts_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | gcts_ReverseRecapitalizationLineItems
Namespace Prefix: | gcts_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=gcts_ConcordAcquisitionCorpIiiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=gcts_PrivatePlacementWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=gcts_PublicWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=gcts_GCTSemiconductorIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=gcts_PrivatePlacementWarrantsAndPublicWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=gcts_SponsorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |