Long-term Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2020	Dec. 29, 2019
Debt Instrument [Line Items]
Unamortized discount	$ 334	$ 400
Total debt excluding Revolver	40,641	36,067
Less current maturities	2,847	2,847
Long-term debt – Less current maturities	37,794	33,220
Line of credit for capital expenditures
Debt Instrument [Line Items]
Total debt excluding Revolver	$ 1,251	1,300
Line of credit \| PPP under CARES Act \| Secured debt
Debt Instrument [Line Items]
Effective interest rate	1.00%
Total debt excluding Revolver	$ 5,999	0
Line of credit \| New US Term Loan \| Secured debt
Debt Instrument [Line Items]
Effective interest rate	5.00%
Unamortized discount	$ 300
Total debt excluding Revolver	23,743	24,383
Line of credit \| New US Term Loan \| Secured debt \| September 30, 2020
Debt Instrument [Line Items]
Principal payment	300
Line of credit \| New US Term Loan \| Secured debt \| September 30, 2021
Debt Instrument [Line Items]
Principal payment	600
Line of credit \| New US Term Loan \| Secured debt \| November 7, 2023
Debt Instrument [Line Items]
Principal payment	$ 800
Line of credit \| CA term loan \| Secured debt
Debt Instrument [Line Items]
Effective interest rate	5.00%
Unamortized discount	$ 100
Total debt excluding Revolver	9,648	$ 10,384
Line of credit \| CA term loan \| Secured debt \| November 7, 2023
Debt Instrument [Line Items]
Principal payment	$ 400
Line of credit \| Line of credit for capital expenditures
Debt Instrument [Line Items]
Effective interest rate	5.00%
Line of credit \| Line of credit for capital expenditures \| September 30, 2020
Debt Instrument [Line Items]
Percent of principal payment	7.50%
Line of credit \| Line of credit for capital expenditures \| September 30, 2021
Debt Instrument [Line Items]
Percent of principal payment	10.00%
Line of credit \| Line of credit for capital expenditures \| November 7, 2023
Debt Instrument [Line Items]
Percent of principal payment	12.50%

Line of Credit Facility, Periodic Payment, Principal, Percent

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Amount, after accumulated amortization, of debt discount.

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Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

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