Stock-Based Compensation (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jul. 02, 2019	Jun. 30, 2020	Jul. 02, 2019
Share-based Payment Arrangement [Abstract]
Shares awards available to be granted (in shares)	2.8		2.8
Stock-based compensation expense	$ 1,094	$ 1,155	$ 1,253	$ 1,881
Capitalized stock-based compensation expense	$ 25	$ 10	$ 37	$ 21

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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Amount of cost capitalized for award under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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