XML 61 R49.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Stockholders' Equity - Warrants - Additional Information (Detail) - USD ($) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2014 | Nov. 30, 2014 | Sep. 30, 2014 | Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2015 | Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2012 | Mar. 31, 2012 | Mar. 31, 2011 | Dec. 31, 2011
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Purchase shares of common stock for issued warrants |  |  |  |  |  |  |  |  | 21,347,182 |  |  | 2,909,750
Cash proceeds from warrant exercises |  |  |  |  | $ 139,000 |  | $ 55,000 |  |  |  |  |
Warrants to purchase common stock |  | 145,000 |  | 1,370 |  |  |  |  | 650,000 |  |  |
Interest expense |  |  |  | $ 0 | $ 0 |  | $ 1,000 |  |  |  |  |
Warrants maturity term |  | 5 years |  |  |  |  |  |  |  | 5 years | 5 years |
Warrants issued |  |  | 50,000 |  |  |  |  |  |  |  |  |
Warrants earned, service period |  | 17 months |  |  |  |  |  |  |  |  |  |
Number of warrant shares vested upon satisfaction of specific performance metrics |  |  |  | 95,000 |  |  |  |  |  |  |  |
Volatility |  | 73.40% |  | 72.17% | 73.96% |  | 76.90% |  |  |  |  |
Risk-free interest rate |  | 1.21% |  | 1.16% | 1.57% |  | 1.60% |  |  |  |  |
Weighted-average remaining contractual term of options exercisable |  |  |  | 5 years 10 months 21 days |  |  |  |  |  |  |  |
Consultation Service Agreement September 2014 |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Recognized expenses of warrants | $ 237,000 |  |  |  |  |  |  |  |  |  |  |
Consultation Service Agreement November 2014 |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Recognized expenses of warrants |  |  |  |  | $ 6,000 |  | $ 31,000 |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercisable price, per share |  |  |  | $ 2.28 |  |  |  |  |  |  |  |
Warrants maturity term |  |  |  |  |  |  |  |  | 2 years |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercisable price, per share |  |  |  | $ 7.62 |  |  |  |  |  |  |  |
Warrants maturity term |  |  |  |  |  |  |  |  | 5 years |  |  |
Amendment March 2014 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercisable price, per share |  |  |  |  |  |  |  | $ 1.00 |  |  |  |
Warrants to purchase common stock |  |  |  |  |  |  |  | 269,657 |  |  |  |
Amendment March 2014 [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercisable price, per share |  |  |  |  |  |  |  | $ 0.85 |  |  |  |
Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants exercised |  |  |  | 353,093 | 0 |  | 203,000 |  |  |  |  |
Cash proceeds from warrant exercises |  |  |  | $ 336,000 | $ 0 |  | $ 445,000 |  |  |  |  |
Number of warrant exercised through cashless |  |  |  | 469,000 | 43,796 |  | 8,647 |  |  |  |  |
Cashless exercise in exchange for issuance of common stock |  |  |  | 347,286 | 32,914 |  | 7,600 |  |  |  |  |
Warrants exercisable price, per share |  | $ 6.84 |  |  |  |  |  |  |  |  |  |
Estimated fair value of warrants |  | $ 74,000 |  |  |  |  |  |  |  |  |  |
Weighted-average remaining contractual term of options exercisable |  |  |  | 1 year 10 months 10 days |  |  |  |  |  |  |  |
Warrants [Member] | Consultants [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of warrants exercised |  |  |  | 0 | 0 | 0 |  |  |  |  |  |
Warrants [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercisable price, per share |  |  |  |  |  |  |  |  | $ 1.70 |  |  |
Warrants [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Warrants exercisable price, per share |  |  |  |  |  |  |  |  | $ 3.24 |  |  |
Warrants [Member] | Amendment March 2014 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Class Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  | $ 12,000 |  |  |  |

X
- Definition Cashless exercise for issuance of common stock. + References No definition available. + Details
Name: | onvo_CashlessExerciseForIssuanceOfCommonStock
Namespace Prefix: | onvo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Class of warrant or right life. + References No definition available. + Details
Name: | onvo_ClassOfWarrantOrRightLife
Namespace Prefix: | onvo_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Common stock warrants issued. + References No definition available. + Details
Name: | onvo_CommonStockWarrantsIssued
Namespace Prefix: | onvo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of warrant shares vested upon satisfaction of specific performance metrics. + References No definition available. + Details
Name: | onvo_NumberOfWarrantSharesVestedUponSatisfactionOfSpecificPerformanceMetrics
Namespace Prefix: | onvo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of warrants exercised. + References No definition available. + Details
Name: | onvo_NumberOfWarrantsExercised
Namespace Prefix: | onvo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrant earning period through issuance of common stock. + References No definition available. + Details
Name: | onvo_WarrantEarningPeriodThroughIssuanceOfCommonStock
Namespace Prefix: | onvo_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrant or right expense or revenue recognized. + References No definition available. + Details
Name: | onvo_WarrantOrRightExpenseOrRevenueRecognized
Namespace Prefix: | onvo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Warrants cashless exercise number. + References No definition available. + Details
Name: | onvo_WarrantsCashlessExerciseNumber
Namespace Prefix: | onvo_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- 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 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number 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)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of addition (reduction) to the amount at which an instrument classified in shareholders' equity could be incurred (settled) in a current transaction between willing parties. + References No definition available. + Details
Name: | us-gaap_EquityFairValueAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. + References No definition available. + Details
Name: | us-gaap_ProceedsFromWarrantExercises
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | invest_InvestmentAxis=onvo_ConsultationServiceAgreementSeptemberTwoThousandFourteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | invest_InvestmentAxis=onvo_ConsultationServiceAgreementNovemberTwoThousandFourteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=onvo_AmendedAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_WarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TitleOfIndividualAxis=onvo_ConsultantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |