XML 24 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Nature of Business and Basis of Presentation (Details Textual) | 9 Months Ended
--- | ---
Sep. 27, 2014
Accounting Policies [Line Items] |
Number of weeks in fiscal quarter (in days) | 91 days
Maximum Period of Delivery to Customers | 6 months
Minimum [Member] |
Accounting Policies [Line Items] |
Number of weeks in fiscal year (in days) | 364 days
Maximum [Member] |
Accounting Policies [Line Items] |
Number of weeks in fiscal year (in days) | 371 days

X
- Details
Name: | nano_AccountingPoliciesLineItems
Namespace Prefix: | nano_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum period of delivery to customers. + References No definition available. + Details
Name: | nano_MaximumPeriodOfDeliveryToCustomers
Namespace Prefix: | nano_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Weeks In Fiscal Quarter + References No definition available. + Details
Name: | nano_NumberOfWeeksInFiscalQuarter
Namespace Prefix: | nano_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of weeks in fiscal year + References No definition available. + Details
Name: | nano_NumberOfWeeksInFiscalYear
Namespace Prefix: | nano_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration