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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) $ 0.1us-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 $ 0.2us-gaap_AdvertisingExpense $ 0.2us-gaap_AdvertisingExpense $ 0.1us-gaap_AdvertisingExpense
Anti-dilutive shares 0.4us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 0.4us-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     0.9us-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