Defined Contribution Plan, Employee Age Threshhold for Higher Annual Contribution

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- Definition

[Line Items] for Schedule of Benefit Plans Disclosure [Table]

+ References

No definition available.

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

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- Definition

Maximum amount the employee may contribute to a defined contribution plan.

+ References

No definition available.

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

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Employee Benefit Plan (Details) - USD ($)	12 Months Ended
Employee Benefit Plan (Details) - USD ($)	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Schedule of Benefit Plans Disclosure [Line Items]
Defined Contribution Plan, Employee Age Threshhold for Higher Annual Contribution	50 years
Employer matching percentage	50.00%
Maximum amount of employee contribution that employer matches	6.00%
Amount charged to operations in connection with the plan	$ 334,000	$ 347,000	$ 324,000
Under Age Fifty
Schedule of Benefit Plans Disclosure [Line Items]
Maximum amount of annual compensation that can be deferred	18,000
Over Age Fifty
Schedule of Benefit Plans Disclosure [Line Items]
Maximum amount of annual compensation that can be deferred	$ 24,000