SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Deposit on long-term investment (Details) - 3 months ended Mar. 31, 2026 ¥ in Millions	USD ($)	CNY (¥)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Deposits related to pending long-term investment	$ 40,131,287	¥ 280

Amount of deposits made to acquire long term investments.

No definition available.

Name:	ctnt_PaymentsForDepositsOnLongTermInvestments
Namespace Prefix:	ctnt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration