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Line of credit facility borrowing limit under condition two.

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Date of Maturity

+ References

No definition available.

+ Details

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- Definition

Line of credit facility, extension of maturity period.

+ References

No definition available.

+ Details

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- Definition

Line of credit facility standard borrowing limit under condition one.

+ References

No definition available.

+ Details

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Namespace Prefix:	nano_
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- 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

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- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- 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

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- 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

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Line of Credit and Debt Obligations - Textual (Details) (USD $)	0 Months Ended		12 Months Ended
	May 30, 2014	Jul. 18, 2013	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012	May 30, 2014
Line of Credit and Debt Obligations (Textual) [Abstract]
Maturity date	May 30, 2016
Line of Credit Facility, Maximum Borrowing Capacity	$ 12,000,000					$ 12,000,000
Borrowing interest rate	3.00%					3.00%
Limited borrowing amount	12,000,000					12,000,000
Borrowing base	20,000,000					20,000,000
Total borrowing available			18,800,000
Repayments of Long-term Debt		4,800,000us-gaap_RepaymentsOfLongTermDebt	0us-gaap_RepaymentsOfLongTermDebt	5,224,000us-gaap_RepaymentsOfLongTermDebt	2,210,000us-gaap_RepaymentsOfLongTermDebt
Revolving line of credit facility [Member]
Line of Credit and Debt Obligations (Textual) [Abstract]
Extension of maturity period on amendment of existing credit facility	2 years
Revolving line of credit facility [Member] \| Line of Credit [Member]
Line of Credit and Debt Obligations (Textual) [Abstract]
Amount outstanding			0
Mortgage Loan [Member] \| Mortgages [Member]
Line of Credit and Debt Obligations (Textual) [Abstract]
Amount outstanding				$ 0