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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

No definition available.

Name:	nnup_SharebasedCompensationSharesAuthorizedUnderEquityInstrumentsOtherThanOptionsExercisePriceRangeExercisableInstrumentsWeightedAverageExercisePrice1
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Data Type:	num:perShareItemType
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Weighted average remaining contractual term of exercisable equity instruments other than options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	nnup_SharebasedCompensationSharesAuthorizedUnderEquityInstrumentsOtherThanOptionsExercisePriceRangeOutstandingWarrantsExercisableWeightedAverageRemainingContractualTerm2
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Data Type:	xbrli:durationItemType
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Weighted average remaining contractual term of outstanding equity instruments other than options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	nnup_SharebasedCompensationSharesAuthorizedUnderEquityInstrumentsOtherThanOptionsExercisePriceRangeOutstandingWarrantsWeightedAverageRemainingContractualTerm2
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
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Data Type:	xbrli:stringItemType
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Number of non-option equity instruments exercised by participants.

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Data Type:	xbrli:sharesItemType
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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
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Period Type:	instant

Weighted average price at which option holders acquired shares when converting their stock options into shares.

No definition available.