SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Mining of Digital Assets (Details)	6 Months Ended
Jun. 30, 2026 item
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Digital asset mining machine leases	2,321
Digital asset mining machines with remaining lease term	1,157
Digital asset mining machine lease term	2 years

Number of digital asset mining machine leases with remaining lease terms of one year or less, classified as current, that are used by the company in its cryptocurrency mining operations.

No definition available.

Name:	kutg_NumberOfDigitalAssetMiningMachineLeasesCurrent
Namespace Prefix:	kutg_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration