Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 26, 2018	Dec. 27, 2017
Receivables:
Trade accounts receivable from franchisees	$ 11,459	$ 10,688
Financing receivables from franchisees	3,211	5,084
Allowance for doubtful accounts	(300)	(276)
Total receivables, net	26,283	21,384
Noncurrent assets (included as a component of other noncurrent assets):
Financing receivables from franchisees	1,528	427
Write-off of financing receivables from a franchisee	200
Insurance receivable, current	1,000
Vendor receivables [Member]
Receivables:
Other receivable, gross, current	4,016	3,256
Credit card receivables [Member]
Receivables:
Other receivable, gross, current	5,955	1,870
Other [Member]
Receivables:
Other receivable, gross, current	$ 1,942	$ 762

Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.

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Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

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Amount, before allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

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