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Accounts Receivable (Details) - Schedule of Movement of Allowance for Doubtful Accounts - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Schedule of Movement of Allowance for Doubtful Accounts [Abstract]
Beginning balance	$ (3,120)
Addition		$ (3,120)
Disposal of Highlight Media	2,949
Exchange rate effect	$ 171
Ending balance		$ (3,120)

X

- Definition

Represents the amount of allowance for doubtful accounts receivable additions.

+ References

No definition available.

+ Details

Name:	gdc_AllowanceForDoubtfulAccountsReceivableAdditions
Namespace Prefix:	gdc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the amount of allowance for doubtful accounts receivable exchange rate effect.

+ References

No definition available.

+ Details

Name:	gdc_AllowanceForDoubtfulAccountsReceivableExchangeRateEffect
Namespace Prefix:	gdc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Disposal of Highlight Media.

+ References

No definition available.

+ Details

Name:	gdc_DisposalOfHighlightMedia
Namespace Prefix:	gdc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	gdc_ScheduleOfMovementOfAllowanceForDoubtfulAccountsAbstract
Namespace Prefix:	gdc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-4

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant