Quarterly report pursuant to Section 13 or 15(d)

Prepaids and Other Current Assets - Additional Information (Details)

v3.19.3
Prepaids and Other Current Assets - Additional Information (Details) - USD ($)
$ in Thousands
Nov. 08, 2016
Sep. 28, 2019
Dec. 29, 2018
Short Term Debt [Line Items]      
Short term debt   $ 791 $ 675
Energy Efficiency Investments LLC Securities Purchase Agreement | Notes Payable      
Short Term Debt [Line Items]      
Debt issuance date Nov. 08, 2016    
Debt face amount $ 7,732    
Debt interest rate 3.00%    
Debt interest accrual rate 8.00%    
Short term debt   0 0
Unamortized debt issuance costs $ 740 $ 308 $ 419
Debt issuance costs amortization period 60 months