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Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended
	Aug. 10, 2018	Sep. 28, 2018	Sep. 29, 2017
Stockholders Equity Note [Line Items]
Stock Issued During Period, Shares, New Issues	1,999,850
Shares Issued, Price Per Share	$ 36.309
Proceeds from Issuance of Common Stock	$ 72,150	$ 72,150	$ 0

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- Definition

Stockholders Equity Note [line item]

+ References

No definition available.

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- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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