Note 10. Common Stock - Textuals (Details)	Jun. 30, 2016
Class A Common Stock
Minimum Percentage of Class A Shares to Retain Voting Rights and Dividend Preference	15.00%

The minimum percentage of Class A common shares issued and outstanding in relation to total shares issued and outstanding, in order to retain Class A preferential voting rights and the Class B dividend preference.

No definition available.

Name:	kbal_MinimumPercentageOfClassASharesToRetainVotingRightsAndDividendPreference
Namespace Prefix:	kbal_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant