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Segment, Geographic, Product and Significant Customer Information - Customers More Than 10% of Accounts Receivable (Details) | Dec. 27, 2014 | Dec. 28, 2013 | Dec. 29, 2012
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Samsung Electronics Co. Ltd. [Member] |  |  |
Customers accounted for 10% or more of total accounts receivable |  |  |
Customers accounted for 10% or more of total accounts receivable | 10.00%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_SamsungElectronicsMember | 27.40%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_SamsungElectronicsMember |
Intel Corporation [Member] |  |  |
Customers accounted for 10% or more of total accounts receivable |  |  |
Customers accounted for 10% or more of total accounts receivable |  | 14.40%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_IntelCorporationMember | 12.30%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_IntelCorporationMember
Taiwan Semiconductor Manufacturing Company Limited [Member] |  |  |
Customers accounted for 10% or more of total accounts receivable |  |  |
Customers accounted for 10% or more of total accounts receivable | 20.20%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_TaiwanSemiconductorMfgCoMember | 12.10%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_TaiwanSemiconductorMfgCoMember | 17.30%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_TaiwanSemiconductorMfgCoMember
SK Hynix [Member] |  |  |
Customers accounted for 10% or more of total accounts receivable |  |  |
Customers accounted for 10% or more of total accounts receivable |  | 21.80%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_SkHynixMember |
Micron [Member] |  |  |
Customers accounted for 10% or more of total accounts receivable |  |  |
Customers accounted for 10% or more of total accounts receivable | 23.70%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_MicronTechnologyInc.Member |  |
GLOBAL FOUNDRIES [Member] |  |  |
Customers accounted for 10% or more of total accounts receivable |  |  |
Customers accounted for 10% or more of total accounts receivable | 10.20%nano_EntityWideAccountsReceivableMajorCustomerPercentage / us-gaap_MajorCustomersAxis = nano_GlobalFoundriesMember |  |

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