Other Non-Current Assets (Details) - Schedule of estimated amortization expenses of lease advance payments	Mar. 31, 2023 USD ($)
Schedule of Estimated Amortization Expenses of Lease Advance Payments [Abstract]
2025	$ 1,953,338
2026	1,953,338
2027	1,953,338
2028	$ 6,912

Amount of minimum sublease rentals for sale-leaseback transactions accounted for using the deposit method or as a financing to be received by the seller-lessee after the fifth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

Name:	cga_FutureMinimumSubleaseRentalSaleLeasebackTransactionsDueInRollingAfterYearFive
Namespace Prefix:	cga_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant