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Nature of Business and Organization (Details) - USD ($)	1 Months Ended		3 Months Ended
	Sep. 28, 2022	Mar. 31, 2021	Mar. 31, 2023
Variable Interest Entity [Abstract]
Average closing price	$ 0.237
Purchase price		$ 2,464,411
Cancelled shares		426,369
Agreement term			20 years

X

- Definition

Agreement term.

+ References

No definition available.

+ Details

Name:	gdc_AgreementTerm
Namespace Prefix:	gdc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Average closing price per share.

+ References

No definition available.

+ Details

Name:	gdc_AveragePricePerShare
Namespace Prefix:	gdc_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of buyer purchase price.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	us-gaap_AccountingPoliciesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of shares issued which are neither cancelled nor held in the treasury.

+ References

No definition available.

+ Details

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