Details of Certain Balance Sheet Accounts - Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 28, 2020	Dec. 28, 2019
Accounts receivable, net:
Allowance for credit losses	$ (952)	$ (3,040)
Accounts receivable, net of allowance	27,596	44,475
Trade receivables
Accounts receivable, net:
Accounts receivable, gross	22,763	28,635
Credit card receivables
Accounts receivable, net:
Accounts receivable, gross	2,441	14,173
Other receivables
Accounts receivable, net:
Accounts receivable, gross	$ 3,344	$ 4,707

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