XML 48 R53.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Warrants (Summary of Warrant Activity) (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
Warrants Summary Of Warrant Activity Details |  |
Warrants, Outstanding as of beginning of period | 2,287,000 | 1,042,000
Granted with exercise price greater than intrinsic value | 3,100,000 | 1,278,000
Exercised | 0 | 0
Canceled/expired | (256,000) | (33,000)
Warrants, Outstanding as of end of period | 5,131,000 | 2,287,000
Warrants, Weighted-Average Exercise Prices, Outstanding as of beginnig of period | 22.08 | 25.84
Warrants, Weighted-Average Exercise Prices, Granted | $ 2.48 | $ 6.24
Warrants, Weighted-Average Exercise Prices, Exercised | 0 | 0
Warrants, Weighted-Average Exercise Prices, cancelled or expired | $ 17.60 | $ 22.08
Warrants, Weighted-Average Exercise Prices, Outstanding as of end of period | 7.28 | 22.08
Warrants, Exercisable at end of period | 3,031,000 |
Warrants, Weighted-Average Exercise Price, Exercisable | $ 10.49 |

X
- Definition Warrants canceled or expired during the period + References No definition available. + Details
Name: | mvis_WarrantsCanceledexpired
Namespace Prefix: | mvis_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants, Exercisable at end of period + References No definition available. + Details
Name: | mvis_WarrantsExercisableAtEndOfPeriod
Namespace Prefix: | mvis_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Warrants exercised during the period + References No definition available. + Details
Name: | mvis_WarrantsExercised
Namespace Prefix: | mvis_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants granted during the period with exercise price greater than intrinsic value + References No definition available. + Details
Name: | mvis_WarrantsGrantedWithExercisePriceGreaterThanIntrinsicValue
Namespace Prefix: | mvis_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | mvis_WarrantsSummaryOfWarrantActivityDetailsAbstract
Namespace Prefix: | mvis_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants, Weighted-Average Exercise Price, Exercisable + References No definition available. + Details
Name: | mvis_WarrantsWeightedaverageExercisePriceExercisable
Namespace Prefix: | mvis_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Warrants cancelled or expired during the period, weighted-average exercise prices + References No definition available. + Details
Name: | mvis_WarrantsWeightedaverageExercisePricesCancelledOrExpired
Namespace Prefix: | mvis_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants exercised during the period, weighted-average exercise prices + References No definition available. + Details
Name: | mvis_WarrantsWeightedaverageExercisePricesExercised
Namespace Prefix: | mvis_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants granted during the period, weighted-average exercise prices + References No definition available. + Details
Name: | mvis_WarrantsWeightedaverageExercisePricesGranted
Namespace Prefix: | mvis_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The exercise price of each class of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 08 -Paragraph i -Subparagraph 4 Reference 2: 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=6881521&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition The specified number of securities that each class of warrants or rights outstanding give the holder the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 4 -Section 08 -Paragraph i -Subparagraph 2 Reference 2: 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=6881521&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant