Stock Compensation - Schedule of Awards (Details)	3 Months Ended
Sep. 30, 2022 $ / shares shares
Relative Total Shareholder Return
Share-based Compensation Arrangement by Share-based Payment Award
Targeted Shares or Units (in shares)	152,034
Grant Date Fair Value (in dollars per share) \| $ / shares	$ 7.33
Relative Total Shareholder Return \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Payout percentage	0.00%
Relative Total Shareholder Return \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Payout percentage	200.00%
Number of shares authorized (in shares)	304,068
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Targeted Shares or Units (in shares)	379,087
Restricted Stock Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Grant Date Fair Value (in dollars per share) \| $ / shares	$ 7.83
Unrestricted Shares
Share-based Compensation Arrangement by Share-based Payment Award
Targeted Shares or Units (in shares)	21,318
Unrestricted Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Grant Date Fair Value (in dollars per share) \| $ / shares	$ 7.77

Share-based Compensation Arrangement by Share-based Payment Award, Payout Percentage

No definition available.

Name:	kbal_SharebasedCompensationArrangementbySharebasedPaymentAwardPayoutPercentage
Namespace Prefix:	kbal_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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

- Details

Name:	us-gaap_AwardTypeAxis=kbal_RelativeTotalShareholderReturnMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=kbal_UnrestrictedSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: