XML 35 R37.htm IDEA: XBRL DOCUMENT
v2.4.1.9

11. Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Stock-Based Compensation Tables |
Schedule of options granted under employee stock plans |
|  | Shares Available for Grant |  |  | Number of Shares Outstanding |  |  | Weighted-Average Exercise Price |
Balance as of December 31, 2012 |  |  | 161 |  |  |  | 752 |  |  | $ | 5.90 |
Authorized |  |  | 100 |  |  |  | — |  |  |  | — |
Granted |  |  | (288 | ) |  |  | 288 |  |  |  | 5.80 |
Exercised |  |  | — |  |  |  | (26 | ) |  |  | 3.30 |
Forfeited/expired |  |  | 101 |  |  |  | (101 | ) |  |  | 15.31 |
Balance as of December 31, 2013 |  |  | 74 |  |  |  | 913 |  |  | $ | 4.90 |
Authorized |  |  | 100 |  |  |  | — |  |  |  | — |
Granted |  |  | (247 | ) |  |  | 247 |  |  |  | 4.38 |
Exercised |  |  | — |  |  |  | (156 | ) |  |  | 1.69 |
Forfeited/expired |  |  | 78 |  |  |  | (78) |  |  |  | 2.71 |
Balance as of December 31, 2014 |  |  | 5 |  |  |  | 926 |  |  | $ | 5.52 |
Schedule of weighted average fair value calculations for options |
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Remaining Contractual Term (In Years) |  |  | Average Intrinsic Value1 |
2014 |  |  |  |  |  |  |  |  |  |  |  |
Vested |  |  | 559 |  |  | $ | 5.89 |  |  |  | 2.41 |  |  | $ | 772 |
Unvested |  |  | 367 |  |  |  | 4.95 |  |  |  | 3.87 |  |  |  | 356 |
Total |  |  | 926 |  |  | $ | 5.52 |  |  |  | 2.99 |  |  | $ | 1,128 |
2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vested |  |  | 516 |  |  | $ | 4.40 |  |  |  | 1.77 |  |  | $ | 523 |
Unvested |  |  | 397 |  |  |  | 5.70 |  |  |  | 4.11 |  |  |  | 9 |
Total |  |  | 913 |  |  | $ | 4.90 |  |  |  | 2.79 |  |  | $ | 532 |
(1) Intrinsic value calculation based on the $5.79 and $3.20 closing price of Aemetis stock on December 31, 2014 and 2013, as reported on the NASDAQ exchange and Over the Counter Bulletin Board respectively.
Schedule of Outside Company Stock Plan |
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Remaining Contractual Term (In Years) |  |  | Average Intrinsic Value2 |
2014 |  |  |  |  |  |  |  |  |  |  |  |
Vested |  |  | 89 |  |  | $ | 5.50 |  |  |  | 2.85 |  |  | $ | 26 |
Unvested |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total |  |  | 89 |  |  | $ | 5.50 |  |  |  | 2.85 |  |  | $ | - |
2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Vested |  |  | 69 |  |  | $ | 5.50 |  |  |  | 3.85 |  |  | $ | - |
Unvested |  |  | 29 |  |  |  | 5.50 |  |  |  | 3.85 |  |  |  | - |
Total |  |  | 98 |  |  | $ | 5.50 |  |  |  | 3.85 |  |  | $ | - |
Schedule of assumptions for weighted-average fair value calculations for options granted |
|  | For the year ended December 31 |  |
|  | 2014 |  |  | 2013 |  |  | 2012 |  |  |  |
Dividend-yield |  |  | 0 | % |  |  | 0 | % |  |  | 0 | % |  |  |
Risk-free interest rate |  |  | 0. 74 - 1.10 | % |  |  | 0.42 - 0.63 | % |  |  | 0.28 - 0.38 | % |  |  |
Expected volatility |  |  | 77.00 - 78.43 | % |  |  | 73.20 - 75.55 | % |  |  | 79.08 | % |  |  |
Expected life (years) |  |  | 3 |  |  |  | 3 |  |  |  | 2 - 3 |  |  |  |
Market value per share on grant date |  | $ | 4.20 - $ 4.66 |  |  | $ | 4.00 to $6.50 |  |  | $ | 5.50 |  |  |  |
Weighted average fair value per share on grant date |  | $ | 2.14 - $2.35 |  |  | $ | 1.92 - $3.19 |  |  | $ | 2.34 - $2.80 |  |  |  |

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

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

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

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

X
- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: 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_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration