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Nature of Business, Basis of Presentation and Significant Accounting Policies (Details Textual) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 27, 2014 | Dec. 28, 2013 | Dec. 29, 2012
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Fiscal year duration | 364 days | 364 days | 364 days
Foreign currency transaction gains (losses) | $ 0.1 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | $ (0.7)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | $ (0.3)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
Maximum period of delivery to customers | 6 months |  |
Maximum period services are provided over the fixed arrangement term | 12 months |  |
Maximum measurement period | 1 year |  |
Product warranty period | 12 months |  |
Advertising costs | $ 0.2 us-gaap_AdvertisingExpense | $ 0.2 us-gaap_AdvertisingExpense | $ 0.1 us-gaap_AdvertisingExpense
Anti-dilutive shares | 0.4 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount | 0.4 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount |
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Top five largest customers | 72.00%nano_ConcentrationRiskPercentageFiveMajorCustomers / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember | 71.00%nano_ConcentrationRiskPercentageFiveMajorCustomers / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember | 74.00%nano_ConcentrationRiskPercentageFiveMajorCustomers / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueGoodsNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember
Stock Options [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Anti-dilutive shares |  |  | 0.9 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember
Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Fiscal year duration | 364 days |  |
Finite-lived intangibles estimated lives | 2 years |  |
Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Fiscal year duration | 371 days |  |
Finite-lived intangibles estimated lives | 10 years |  |
Developed technology [Member] | Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 5 years |  |
Developed technology [Member] | Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 10 years |  |
Customer relationships [Member] | Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 2 years |  |
Customer relationships [Member] | Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 10 years |  |
Brand name [Member] | Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 5 years |  |
Brand name [Member] | Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 10 years |  |
Patented technology [Member] | Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 7 years |  |
Patented technology [Member] | Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 10 years |  |
Trademark [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Finite-lived intangibles estimated lives | 5 years |  |
Building and Improvements [Member] | Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Estimated useful lives of depreciable assets | 5 years |  |
Building and Improvements [Member] | Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Estimated useful lives of depreciable assets | 40 years |  |
Machinery and equipment [Member] | Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Estimated useful lives of depreciable assets | 3 years |  |
Machinery and equipment [Member] | Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Estimated useful lives of depreciable assets | 10 years |  |
Furniture and fixtures [Member] | Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Estimated useful lives of depreciable assets | 3 years |  |
Furniture and fixtures [Member] | Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Estimated useful lives of depreciable assets | 10 years |  |
Software [Member] | Minimum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Estimated useful lives of depreciable assets | 3 years |  |
Software [Member] | Maximum [Member] |  |  |
Nature of Business and Basis of Presentation (Textual) [Abstract] |  |  |
Estimated useful lives of depreciable assets | 7 years |  |

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