XML 93 R66.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Line of Credit and Debt Obligations (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 18, 2013 | Apr. 23, 2012 | Jul. 31, 2012 | Jul. 31, 2011 | Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011 | Apr. 23, 2012 Revolving line of credit facility [Member] | Jul. 31, 2008 Residential Mortgage [Member]
Line of Credit and Debt Obligations (Textual) [Abstract] |  |  |  |  |  |  |  |  |
Extension of maturity period on amendment of existing credit facility |  |  |  |  |  |  |  | 2 years |
Maturity date |  | Apr. 30, 2014 |  |  |  |  |  |  |
Commitment fee minimum percentage decreased |  | 0.1875% |  |  |  |  |  |  |
Commitment fee minimum percentage further decreased |  | 0.10% |  |  |  |  |  |  |
Interest rate during period |  | 5.75% |  |  |  |  |  |  |
Borrowing interest rate |  | 3.00% |  |  | 3.00% |  |  |  |
Limited borrowing amount |  |  |  |  | $ 7,500,000 |  |  |  |
Borrowing base |  |  |  |  | 20,000,000 |  |  |  |
Total borrowing available |  |  |  |  | 12,300,000 |  |  |  |
Mortgage agreement, borrowed amount |  |  |  |  | 0 | 5,302,000 |  |  | 13,500,000
Interest rate description for mortgage |  |  |  |  |  |  |  |  | Initially bears interest at the rate of 7.18% per annum, which rate will be reset after five years to 3.03% over the then weekly average yield of five-year U.S. Dollar Interest Rate Swaps as published by the Federal Reserve
Mortgage bears interest rate initially |  |  |  |  |  |  |  |  | 7.18%
Mortgage bears interest rate after five year |  |  |  |  |  |  |  |  | 3.03%
Monthly principal and interest payments description |  |  |  |  | A twenty year amortization for the first sixty months and fifteen year amortization thereafter. The remaining principal balance of the mortgage and any accrued but unpaid interest will be due on August 1, 2018 |  |  |  |
Amortization period of mortgage loan for sixty month |  |  | 20 years |  |  |  |  |  |
Amortization period, initial basis |  |  | 60 months |  |  |  |  |  |
Amortization period of mortgage loan after sixty month |  |  | 15 years |  |  |  |  |  |
Early Repayment Percent of Outstanding Debt |  |  |  | 20.00% | 20.00% |  |  |  |
Debt instrument pre payment |  |  | 1,400,000 | 1,950,000 |  |  |  |  |
Maximum percentage of outstanding debt for pre payment |  |  | 20.00% |  |  |  |  |  |
Repayments of Long-term Debt | $ 4,800,000 |  |  |  | $ 5,224,000 | $ 2,210,000 | $ 2,571,000 |  |

X
- Definition Amortization period of mortgage loan after sixty month. + References No definition available. + Details
Name: | nano_AmortizationPeriodOfMortgageLoanAfterSixtyMonth
Namespace Prefix: | nano_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortization period of mortgage loan for sixty month. + References No definition available. + Details
Name: | nano_AmortizationPeriodOfMortgageLoanForSixtyMonth
Namespace Prefix: | nano_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt instrument interest rate stated percentage after year five. + References No definition available. + Details
Name: | nano_DebtInstrumentInterestRateStatedPercentageAfterYearFive
Namespace Prefix: | nano_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt instrument pre payment. + References No definition available. + Details
Name: | nano_DebtInstrumentPrePayment
Namespace Prefix: | nano_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Early repayment percent of outstanding debt. + References No definition available. + Details
Name: | nano_EarlyRepaymentPercentOfOutstandingDebt
Namespace Prefix: | nano_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Line of credit facility borrowing limit under condition two. + References No definition available. + Details
Name: | nano_LineOfCreditFacilityBorrowingLimitUnderConditionTwo
Namespace Prefix: | nano_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line of credit facility commitment fee minimum percentage decreased. + References No definition available. + Details
Name: | nano_LineOfCreditFacilityCommitmentFeeMinimumPercentageDecreased
Namespace Prefix: | nano_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line of credit facility commitment fee minimum percentage further decreased. + References No definition available. + Details
Name: | nano_LineOfCreditFacilityCommitmentFeeMinimumPercentageFurtherDecreased
Namespace Prefix: | nano_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line of Credit Facility, Date of Maturity + References No definition available. + Details
Name: | nano_LineOfCreditFacilityDateOfMaturity
Namespace Prefix: | nano_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line of credit facility, extension of maturity period. + References No definition available. + Details
Name: | nano_LineOfCreditFacilityExtensionOfMaturityPeriod
Namespace Prefix: | nano_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Monthly principal and interest payments description. + References No definition available. + Details
Name: | nano_LineOfCreditFacilityMonthlyPrincipalAndInterestPaymentDescription
Namespace Prefix: | nano_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line of credit facility standard borrowing limit under condition one. + References No definition available. + Details
Name: | nano_LineOfCreditFacilityStandardBorrowingLimitUnderConditionOne
Namespace Prefix: | nano_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Loan Principal and Interest Payment Amortization Basis Period + References No definition available. + Details
Name: | nano_LoanPrincipalandInterestPaymentAmortizationBasisPeriod
Namespace Prefix: | nano_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum percentage of outstanding debt for pre payment. + References No definition available. + Details
Name: | nano_MaximumPercentageOfOutstandingDebtForPrePayment
Namespace Prefix: | nano_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityInterestRateDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The effective interest rate during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityInterestRateDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
Name: | us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration