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Equity (Narrative) (Details)
3 Months Ended 9 Months Ended
Dec. 28, 2018
shares
Sep. 28, 2018
shares
Mar. 29, 2019
USD ($)
plan
Jun. 29, 2018
shares
May 31, 2018
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of stock incentive plans | plan     2    
Stock options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Nonvested awards, unrecognized compensation expense | $     $ 1,100,000    
Nonvested awards, expense expected to be recognized, weighted average period     2 years 5 months 9 days    
Stock awards and units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Nonvested awards, unrecognized compensation expense | $     $ 1,300,000    
Nonvested awards, expense expected to be recognized, weighted average period     11 months 27 days    
2018 Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Additional shares available to grant to employees (in shares) | shares       500,000  
2018 Incentive Plan | Restricted stock units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock issued under stock incentive plan (in shares) | shares 15,584        
2018 Incentive Plan | Performance Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock issued under stock incentive plan (in shares) | shares   78,236      
2018 Incentive Plan | Stock options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock issued under stock incentive plan (in shares) | shares   156,466      
Share Repurchase Program          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Authorized repurchase amount | $         $ 7,500,000
Remaining value available under stock repurchase program | $     $ 5,600,000