Embezzlement (Details) - USD ($)	3 Months Ended	12 Months Ended
Dec. 26, 2015	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Unusual or Infrequent Item, or Both [Line Items]
Unusual or Infrequent Item, or Both, Loss, Gross			$ (85,000)	$ (46,000)
Unusual or Infrequent Item, or Both, Tax Effect			(253,000)	(167,000)
Unusual or Infrequent Item, or Both, Net of Insurance Proceeds	$ (338,000)			(213,000)
Unusual or Infrequent Item, or Both, Net (Gain) Loss		$ 480,000	$ 338,000	$ 213,000	$ 558,000
Unusual or Infrequent Item, or Both, Gain, Gross		$ 1,589,000

Amount of gain recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount, before deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

+ References

+ Details

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- Definition

Amount of (gain) loss for an event or transaction that is unusual in nature or occurs infrequently, or both.

+ References

+ Details

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- Definition

Amount, after deduction of insurance proceeds, of loss recognized in the income statement for an event or transaction that is unusual in nature or infrequent in occurrence, or both.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64828382&loc=d3e15138-107781

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 55
-Paragraph 66
-URI http://asc.fasb.org/extlink&oid=75116239&loc=d3e34211-109320

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 40
-Section 25
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68049474&loc=d3e59193-111647

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 40
-Section 25
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=68049474&loc=d3e59170-111647

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 10
-Section 60
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68067471&loc=d3e11642-108343

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- Definition

Amount of tax related to an event or transaction that is unusual in nature or infrequent in occurrence, or both.

+ References

+ Details

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