Quarterly report pursuant to Section 13 or 15(d)

Line Of Credit (Narrative) (Details)

v3.20.2
Line Of Credit (Narrative) (Details)
6 Months Ended 12 Months Ended
Sep. 30, 2020
USD ($)
Jul. 15, 2019
USD ($)
item
Feb. 19, 2016
USD ($)
Jun. 27, 2020
USD ($)
Dec. 28, 2019
USD ($)
Line of Credit Facility [Line Items]          
Increased (decreased) line of credit         $ (8,924,000)
Credit facility       $ 75,000,000  
Line of Credit [Member]          
Line of Credit Facility [Line Items]          
Increased (decreased) line of credit       (8,856,000)  
Outstanding debt       $ 0  
Maturity date       Apr. 27, 2021  
Amended And Restated Credit Agreement [Member]          
Line of Credit Facility [Line Items]          
Adjusted EBITDA covenant     $ 100,000,000    
Ratio of consolidated funded debt to adjusted EBITDA     2.0    
Third Amendment [Member] | Line of Credit [Member]          
Line of Credit Facility [Line Items]          
Increased (decreased) line of credit   $ 125,000,000      
Credit facility   $ 200,000,000      
Third Amendment [Member] | Maximum [Member] | Line of Credit [Member]          
Line of Credit Facility [Line Items]          
Number of increments | item   3      
Third Amendment [Member] | Minimum [Member] | Line of Credit [Member]          
Line of Credit Facility [Line Items]          
Capacity available   $ 25,000,000      
Third Amendment [Member] | Scenario, Forecast [Member]          
Line of Credit Facility [Line Items]          
Increased (decreased) line of credit $ 100,000,000