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

Name:	us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
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 ($)		6 Months Ended
	Jan. 08, 2021	Jun. 30, 2021	Jan. 12, 2021
Related Party Transaction [Line Items]
Proceeds received from private placement		$ 8,020,000
Private Placement Warrants
Related Party Transaction [Line Items]
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
Related Party Transaction [Line Items]
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
Related Party Transaction [Line Items]
Sale of Private Placement Warrants (in shares)			720,000
Price of warrant			$ 1.00
Proceeds received from private placement	$ 700,000