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11. STOCK-BASED COMPENSATION (Details - Unvested) (Unvested Stock Options, USD $)
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12 Months Ended |
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Dec. 31, 2014
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Unvested Stock Options
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| Unvested stock options, beginning balance |
0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Unvested options granted |
6,470,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Unvested options vested |
3,048,869us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Unvested options forfeited |
0us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Unvested stock options, ending balance |
3,421,131us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Weighted average exercise price, beginning balance |
$ 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Weighted average fair value per share on grant date, granted |
$ 2.22us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Weighted average fair value per share on grant date, vested |
$ 2.11us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Weighted average fair value per share on grant date, forfeited |
$ 0us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| Weighted average exercise price, ending balance |
$ 2.31us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / us-gaap_AwardTypeAxis = canv_UnvestedStockOptionsMember |
| X | ||||||||||
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- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of non-vested options outstanding. No definition available.
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| X | ||||||||||
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- Definition
Number of non-vested options forfeited. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of options vested. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
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| X | ||||||||||
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- Definition
Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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