Schedule II - Valuation and Qualifying Accounts and Reserves - Schedule of Valuation and Qualifying Accounts and Reserves (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 30, 2017	Dec. 31, 2016
Allowance for Doubtful Accounts [Member]
Balance at Beginning of Period	$ 1,402	$ 1,432
Charged to Costs and Expenses	662	650
Deduction	(1,097)	(680)
Balance at End of Period	967	1,402
Legal Reserve [Member]
Balance at Beginning of Period	455	214
Charged to Costs and Expenses	192	455
Deduction	(522)	(214)
Balance at End of Period	$ 125	$ 455

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

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Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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