Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

v3.10.0.1
Subsequent Events (Details) - DZ Financing Program, 2018 Amendment - Subsequent Event - USD ($)
Jan. 04, 2019
Jan. 03, 2019
Subsequent Event [Line Items]    
Covenant, minimum tangible net worth, through fiscal 2019 $ 30,000,000.0  
Covenant, minimum tangible net worth, fiscal 2020 $ 40,000,000.0  
Maximum permitted delinquent receivables, payment terms (excess of) 60 days  
Maximum permitted delinquent receivables, percent 10.00% 2.50%