Number of shares of stock issued during the period pursuant to the exercise of warrants.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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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

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585

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Earnings Per Share - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended		9 Months Ended
	Mar. 21, 2018	Mar. 19, 2018	Mar. 23, 2013	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018	Mar. 26, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Non-vested restricted shares				0	0	0	0
Proceeds from exercise of unit warrant						$ 0	$ 1,092
Exercise price per warrant unit (in usd per share)								$ 7.80
Restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Non-vested restricted shares						625,687	588,430
Unit warrant \| Underwriter
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Warrant units (in shares)								140,000
Proceeds from exercise of unit warrant		$ 1,092	$ 1,008
Proceeds from exercise of warrants, net of costs (in shares)	140,000
Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Proceeds from exercise of warrants, net of costs (in shares)							140,000
Common Stock \| Unit warrant \| Underwriter
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities called by each warrant unit (in shares)								1
Warrant \| Unit warrant \| Underwriter
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of securities called by each warrant unit (in shares)								1