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Share-Based Compensation - Schedules of Award Activity (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Restricted Stock and Restricted Stock Units
Number of Awards
Beginning outstanding balance (in shares)	98,560
Granted (in shares)	0
Vested (in shares)	(81,893)
Forfeited (in shares)	0
Ending outstanding balance (in shares)	16,667	98,560
Weighted Average Fair Value
Beginning outstanding balance (in dollars per share)	$ 13.19
Granted (in dollars per share)	0
Vested (in dollars per share)	14.10
Forfeited (in dollars per share)	0
Ending outstanding balance (in dollars per share)	$ 9.90	$ 13.19
Total fair value of vested stocks	$ 1.2	$ 1.1	$ 1.5
Restricted Stock Units (RSUs)
Number of Awards
Beginning outstanding balance (in shares)	270,450
Granted (in shares)	98,396
Vested (in shares)	(100,390)		0
Forfeited (in shares)	(26,094)
Ending outstanding balance (in shares)	242,362	270,450
Weighted Average Fair Value
Beginning outstanding balance (in dollars per share)	$ 7.32
Granted (in dollars per share)	7.30
Vested (in dollars per share)	6.79
Forfeited (in dollars per share)	8.32
Ending outstanding balance (in dollars per share)	$ 7.41	$ 7.32
Total fair value of vested stocks	$ 0.7	$ 0.6
Performance shares
Number of Awards
Beginning outstanding balance (in shares)	67,000
Granted (in shares)	0
Vested (in shares)	0
Forfeited (in shares)	(7,000)
Ending outstanding balance (in shares)	60,000	67,000
Weighted Average Fair Value
Beginning outstanding balance (in dollars per share)	$ 9.35
Granted (in dollars per share)	0
Vested (in dollars per share)	0
Forfeited (in dollars per share)	9.80
Ending outstanding balance (in dollars per share)	$ 9.29	$ 9.35
Total fair value of vested stocks		$ 1.6	$ 1.7
Stock options
Shares
Beginning outstanding balance (in shares)	75,000
Granted (in shares)	0	0	0
Exercised (in shares)	0	0	0
Forfeited (in shares)	0
Expired (in shares)	0
Ending outstanding balance (in shares)	75,000	75,000
Weighted Average Exercise Price
Beginning outstanding balance (in dollars per share)	$ 46.60
Granted (in dollars per share)	0
Exercised (in dollars per share)	0
Forfeited (in dollars per share)	0
Expired (in dollars per share)	0
Ending outstanding balance (in dollars per share)	$ 46.60	$ 46.60

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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