XML 109 R93.htm IDEA: XBRL DOCUMENT v3.25.0.1
Stock-Based Compensation - Narrative (Details) - USD ($)
12 Months Ended
Dec. 28, 2024
Dec. 30, 2023
Dec. 31, 2022
Jan. 02, 2021
Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Nonvested stock options $ 0 $ 0      
Unrecognized compensation cost $ 0        
Granted (in shares) 0 0 0    
RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period (in years)       3 years  
Unrecognized compensation cost $ 2,900,000        
Nonvested stock, weighted average recognition period 8 months 12 days        
PSU          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period (in years) 3 years     3 years  
Unrecognized compensation cost $ 8,900,000        
Nonvested stock, weighted average recognition period 10 months 24 days        
Stock Option          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Exercised period (in years) 10 years        
Cliff vesting | RSUs          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period (in years)       3 years 3 years
Cliff vesting | Stock Option          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period (in years) 4 years        
Kimball International, Inc. Stock Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Available for future issuance (in shares) 1,100,000        
The Plans          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Available for future issuance (in shares) 3,000,000.0