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3. Property, Plant and Equipment (Details 1) | 6 Months Ended
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Jun. 30, 2014
Property Plant And Equipment Details 1 |
Plant and Buildings | 20 - 30 years
Machinery & Equipment | 5 - 7 years
Furniture & Fixtures | 3 - 5 years

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- Definition No authoritative reference available. + References No definition available. + Details
Name: | AMTX_FurnitureFixtures
Namespace Prefix: | AMTX_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition No authoritative reference available. + References No definition available. + Details
Name: | AMTX_MachineryEquipment
Namespace Prefix: | AMTX_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Custom Element. + References No definition available. + Details
Name: | AMTX_PlantAndBuildings
Namespace Prefix: | AMTX_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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