XML 42 R29.htm IDEA: XBRL DOCUMENT
v3.5.0.2

SHARE-BASED PAYMENTS (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of share-based payment award, stock options, valuation assumptions | The following weighted average assumptions were used for the Black-Scholes option pricing model to calculate the $3.17 million of fair value for the 4,168,750 warrants issued in connection with the public offering in September 2016.
Risk-free rate | 1.2%
Expected life | 5.0 years
Expected volatility | 145.2%*
Expected dividend yield | —%
* | Expected volatility is measured based on the Company’s historical share price volatility over the expected life of the warrants.
The following weighted average assumptions were used for the Black-Scholes option pricing model to calculate the less than $0.01 million of fair value for the 1,224,000 warrants at September 30, 2016.
Risk-free rate | 0.29%
Expected life | 0.3 years
Expected volatility | 33.3%*
Expected dividend yield | —%
The following weighted average assumptions were used for the Black-Scholes option pricing model to calculate the $0.74 million of fair value for the 2,515,625 warrants at September 30, 2016.
Risk-free rate | 0.88%
Expected life | 2.5 years
Expected volatility | 97.6%*
Expected dividend yield | —%
The following weighted average assumptions were used for the Black-Scholes option pricing model to calculate the $2.09 million of fair value for the 2,515,625 warrants issued in connection with the public offering in March 2016.
Risk-free rate | 1.15%
Expected life | 3.0 years
Expected volatility | 106.0%*
Expected dividend yield | —%
* | Expected volatility is measured based on the Company’s historical share price volatility over the expected life of the warrants.
The following weighted average assumptions were used for the Black-Scholes option pricing model to calculate the $2.93 million of fair value for the 4,168,750 warrants at September 30, 2016.
Risk-free rate | 1.14%
Expected life | 5.0 years
Expected volatility | 147.11%*
Expected dividend yield | —%
* | Expected volatility is measured based on the Company’s historical share price volatility over the expected life of the warrants.
The fair value of the options granted under the Compensation Plan for the nine months ended September 30, 2016 was estimated at the date of grant, using the Black-Scholes Option Valuation Model, with the following weighted-average assumptions:
Risk-free interest rate | 1.03% - 1.43%
Expected life | 5.0 years
Expected volatility | 64.7% -74.8%*
Expected dividend yield | —%
Weighted-average expected life of option | 5.00
Weighted-average grant date fair value | $1.22 - $1.23
* | Expected volatility is measured based on the Company’s historical share price volatility over a period equivalent to the expected life of the options.
Schedule of share-based compensation, stock options, activity | The summary of the Company’s stock options at September 30, 2016 and December 31, 2015, and the changes for the fiscal periods ending on those dates is presented below:
| Nine Months ended |  | Year ended
| September 30, 2016 |  | December 31, 2015
| Range of Exercise Prices $ |  | Weighted Average Exercise Price $ |  | Number of Options |  | Range of Exercise Prices $ |  | Weighted Average Exercise Price $ |  | Number of Options
Balance, beginning of period | 2.55 - 32.10 |  |  | 6.54 |  |  | 2,122,897 |  |  | 6.55 - 38.12 |  | 10.05 |  |  | 905,413 |
Transactions during the period: |  |  |  |  |  |  |  |  |  |  |
Granted | 2.12 - 2.22 |  |  | 2.13 |  |  | 449,540 |  |  | 2.55 - 18.55 |  | 6.02 |  |  | 2,176,330 |
Exercised | 2.12 |  |  | 2.12 |  |  | (8,369 | ) |  | 2.55 - 4.48 |  | 3.78 |  |  | (48,802 | )
Forfeited | 2.12 - 19.44 |  |  | 5.95 |  |  | (272,528 | ) |  | 4.44 - 29.71 |  | 7.29 |  |  | (574,486 | )
Expired | 2.95 - 32.78 |  |  | 8.02 |  |  | (106,562 | ) |  | 7.47 - 32.10 |  | 7.42 |  |  | (335,558 | )
Balance, end of period | 2.12 - 15.61 |  |  | 5.81 |  |  | 2,184,978 |  |  | 2.55 - 32.10 |  | 6.54 |  |  | 2,122,897 |
Schedule of share-based compensation, restricted stock and restricted stock units activity | A summary of the status and activity of non-vested stock options and RSUs at September 30, 2016 is as follows:
| Stock-option |  | RSU
| Number of shares |  | Weighted Average Grant- Date Fair Value |  | Number of shares |  | Weighted Average Grant- Date Fair Value
Non-vested December 31, 2015 | 177,698 |  |  | $ | 3.44 |  |  | 272,866 |  |  | $ | 4.03 |
Granted | 449,540 |  |  | 1.29 |  |  | 1,205,336 |  |  | 2.14 |
Vested | (357,634 | ) |  | 2.15 |  |  | (138,608 | ) |  | 4.65 |
Forfeited | (28,045 | ) |  | 2.08 |  |  | (9,125 | ) |  | 5.39 |
Non-vested September 30, 2016 | 241,559 |  |  | $ | 1.50 |  |  | 1,330,469 |  |  | $ | 2.37 |
Schedule of compensation costs for share-based payment arrangements | The share-based compensation recorded during the three and nine months ended September 30, 2016 and 2015 is as follows:
| Three months ended |  | Nine months ended
| September 30, |  | September 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Share-based compensation | $ | 576 |  |  | $ | 22 |  |  | $ | 1,688 |  |  | $ | 810 |
Replacement of options from business combinations and asset acquisitions | — |  |  | — |  |  | — |  |  | 3,683 |
Value of stock options granted | $ | 576 |  |  | $ | 22 |  |  | $ | 1,688 |  |  | $ | 4,493 |

X
- Definition Schedule of Compensation Costs for Share-based Payment Arrangements [Table Text Block] + References No definition available. + Details
Name: | efr_ScheduleOfCompensationCostsForSharebasedPaymentArrangementsTableTextBlock
Namespace Prefix: | efr_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration