Debt Instrument, Basis Spread On Variable Rate, Floor

No definition available.

Name:	kltr_DebtInstrumentBasisSpreadOnVariableRateFloor
Namespace Prefix:	kltr_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Permitted Restricted Payments, Aggregate Amount

+ References

No definition available.

+ Details

Name:	kltr_DebtInstrumentPermittedRestrictedPaymentsAggregateAmount
Namespace Prefix:	kltr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

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-Section S99
-Paragraph 1
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+ Details

Name:	us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The effective interest rate at the end of the reporting period.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

LONG-TERM LOAN - Narrative (Details) - Line of Credit - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Apr. 30, 2026	May 31, 2023	Mar. 31, 2026	Dec. 31, 2023	Jan. 31, 2021
Credit Agreement
Line of Credit Facility [Line Items]
Interest rate at period end			6.30%
Credit Agreement \| Subsequent Event
Line of Credit Facility [Line Items]
Permitted restricted payments, aggregate amount	$ 0
Credit Agreement \| On December 31, 2023, Through September 30, 2024
Line of Credit Facility [Line Items]
Periodic payment			$ 438
Credit Agreement \| On December 31, 2024, Through September 30, 2025
Line of Credit Facility [Line Items]
Periodic payment			656
Credit Agreement \| The Amount Deferred to January 2025
Line of Credit Facility [Line Items]
Periodic payment			218
Credit Agreement \| On and After December 31, 2025
Line of Credit Facility [Line Items]
Periodic payment			$ 1,313
Credit Agreement \| Eurodollar
Line of Credit Facility [Line Items]
Basis spread on variable rate		3.50%
Credit Agreement \| Alternate Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.50%	1.50%
Credit Agreement \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate			0.10%
Interest rate at period end			3.70%
Credit Agreement \| Adjusted Term Secured Overnight Financing Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate			2.50%
Basis spread on variable rate, floor			1.00%
Credit Agreement \| Alternate Base Rate, Federal Funds Effective Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate			0.50%
Basis spread on variable rate, floor			2.00%
Secured Debt \| Term Loan Facility
Line of Credit Facility [Line Items]
Face amount				$ 35,000	$ 40,000
Revolving Credit Facility \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 25,000	$ 10,000