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Derivative Liability (Details Narrative) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
Derivative Liability
Stock price	$ 0.0001	$ 0.001

No definition available.

Name:	GTCH_DisclosureDerivativeLiabilityAbstract
Namespace Prefix:	GTCH_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Price of a single share of a number of saleable stocks of a company.

No definition available.

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant