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Stock-Based Compensation - Nonvested Options, Restricted Stock and Stock-Based Compensation Expense (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 24, 2016	Sep. 26, 2015
Compensation Related Costs [Abstract]
Stock-based compensation expense	$ 0.8	$ 0.7	$ 1.5	$ 1.4
Cost of goods sold.
Compensation Related Costs [Abstract]
Stock-based compensation expense	$ 0.1	$ 0.1	$ 0.2	$ 0.2
Stock Options
Shares
Nonvested at beginning of period			1,335,103
Granted			560,892
Vested			(123,949)
Nonvested shares forfeited			(156,220)
Nonvested at end of period	1,615,826		1,615,826
Weighted-Average Grant Date Fair Value
Nonvested at beginning of period			$ 5.82
Granted			2.60
Vested			7.52
Nonvested shares forfeited			6.20
Nonvested at end of period	$ 4.53		$ 4.53
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized [Abstract]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 5.7		$ 5.7
Weighted-average recognition period			3 years 7 days
Stock Options | 2014 Plan
Compensation Related Costs [Abstract]
Vesting period			5 years
Restricted Stock Awards
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized [Abstract]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 2.2		$ 2.2
Weighted-average recognition period			3 years 11 months 1 day
Restricted Stock Units | 2014 Plan
Compensation Related Costs [Abstract]
Restricted stock units granted	20,000	2,655	136,732	46,201
Vesting period		5 years		5 years
Aggregate grant date fair value	$ 0.3	$ 0.1	$ 1.1	$ 1.3
Restricted Stock Units | 2014 Plan | Employees
Compensation Related Costs [Abstract]
Vesting period	5 years		5 years
Restricted Stock Units | 2014 Plan | Director
Compensation Related Costs [Abstract]
Vesting period	1 year		1 year

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- Definition

Represents the total fair value of options granted during the reporting period.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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-Section 50
-Paragraph 1
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-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested options awarded to employees as compensation.

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

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