v2.4.1.9

FAIR VALUE MEASURMENTS (Details Narrative) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended		23 Months Ended
	Feb. 28, 2013	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Mar. 25, 2015	Jan. 31, 2015
Fair Value Disclosures [Abstract]
Issued warrant to purchase of common stock	37,594us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights			563,910us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	61,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights	420,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Warrant exercise price	$ 2.66us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1				$ 2.57us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	$ 6.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Warrant expiration period	5 years
Proceeds from issuance of Promissory Notes and warrants			$ 100naov_ProceedsFromIssuanceOfWarrantsAndNotes	$ 100naov_ProceedsFromIssuanceOfWarrantsAndNotes

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- Definition

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(4))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

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