XML 75 R65.htm IDEA: XBRL DOCUMENT v3.23.2

Concentration of Risk (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
UNITED STATES [Member]
Concentration of Risk (Details) [Line Items]
Deposits concentration of risk	$ 7,338,124	$ 173,228
Credit Concentration Risk [Member]
Concentration of Risk (Details) [Line Items]
Deposits concentration of risk	$ 62,615	$ 215,880

X

- References

No definition available.

+ Details

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

X

- Definition

Deposit for concentration risk.

+ References

No definition available.

+ Details

Name:	gdc_DepositsConcentrationOfRisk
Namespace Prefix:	gdc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	srt_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConcentrationRiskByTypeAxis=us-gaap_CreditConcentrationRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: