Price per share or per unit of warrants or rights outstanding.

No definition available.

Name:	kair_ClassOfWarrantOrRightPriceOfWarrantsOrRights
Namespace Prefix:	kair_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

When determining the condition for transfer of shares without restriction after a business combination, the number of days in which the share price must exceed the specified amount.

+ References

No definition available.

+ Details

Name:	kair_TransferAssignOrSellAnySharesOfPrivatePlacementsWarrantsAfterCompletionOfInitialBusinessCombinationThresholdTradingDays
Namespace Prefix:	kair_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

+ Details

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

- 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

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=kair_PrivatePlacementWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions - Private Placement Warrants (Details) - USD ($)		9 Months Ended
	Jan. 08, 2021	Sep. 30, 2021	Jan. 12, 2021
Private Placement Warrants
Proceeds received from private placement		$ 8,020,000
Private Placement Warrants
Private Placement Warrants
Threshold trading days for transfer, assign or sale of shares of private placements warrants, after the completion of the initial business combination	30 days
Private Placement \| Private Placement Warrants
Private Placement Warrants
Sale of Private placement warrants (in shares)	7,300,000
Price of warrant	$ 1.00
Proceeds received from private placement	$ 7,300,000
Over-allotment option \| Private Placement Warrants
Private Placement Warrants
Sale of Private placement warrants (in shares)			720,000
Price of warrant			$ 1.00
Proceeds received from private placement	$ 700,000