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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. + References No definition available. + Details
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- Definition 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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