NOTES PAYABLE (Details)	9 Months Ended
Sep. 30, 2021 USD ($)
Movements In Notes Payable Current, Gross [Roll Forward]
Beginning balance	$ 2,450,000
Repayments in cash	(2,450,000)
Movements In Debt Instrument, Unamortized Discount, Current [Roll Forward]
Beginning balance	(128,198)
Amortization of debt discount	128,198
Ending balance	0
Movements In Notes Payable Current [Roll Forward]
Beginning balance	2,321,802
Repayments in cash	(2,450,000)
Amortization of debt discount	128,198
Ending balance	$ 0

Decrease in amount of unamortized debt discount, current, through amortization.

No definition available.

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Namespace Prefix:	kutg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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Namespace Prefix:	kutg_
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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Namespace Prefix:	kutg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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Namespace Prefix:	kutg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount before unamortized (discount) premium and debt issuance costs, of notes payable, classified as current.

+ References

No definition available.

+ Details

Name:	kutg_NotesPayableCurrentGross
Namespace Prefix:	kutg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Decrease in amount before unamortized (discount) premium and debt issuance costs, of notes payable, classified as current, through repayments in cash.

+ References

No definition available.

+ Details

Name:	kutg_NotesPayableCurrentGrossRepaymentsInCash
Namespace Prefix:	kutg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Decrease in amount after unamortized (discount) premium and debt issuance costs, of notes payable, classified as current, through repayments in cash.

+ References

No definition available.

+ Details

Name:	kutg_NotesPayableCurrentRepaymentsInCash
Namespace Prefix:	kutg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of debt discount to be amortized within one year or within the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant