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Contractual life of stock options and other awards under the shared-based compensation plans

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Share-based Compensation Arrangement by Share-based Payment Award, Vesting Percentage, Upon Receipt

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The percentage of a share-based payment award that vests in year five.

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The percentage of a share-based payment award that vests in year four.

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The percentage of a share-based payment award that vests in year one.

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The percentage of a share-based payment award that vests in year three.

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The percentage of a share-based payment award that vests in year two.

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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

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Risk-free interest rate assumption used in valuing an instrument.

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Weighted average expected dividend for an entity using a valuation technique with different dividend rates during the contractual term.

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Weighted average expected volatility of stock price.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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-Publisher FASB

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB

-Name Accounting Standards Codification

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Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.

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-Subparagraph (SX 210.3-04)

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Share-Based Compensation Plan Information (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended			1 Months Ended	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in the period	659,700
Black-Scholes Assumptions [Abstract]
Expected life (years)	5 years 3 months	5 years 4 months 24 days	5 years 6 months
Expected volatility	82.90%	89.60%	92.40%
Expected dividend yield	$ 0	$ 0	$ 0
Risk-free interest rate	1.80%	1.50%	0.70%
Weighted average fair value of options granted during the year	$ 0.39	$ 0.34	$ 0.47
2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized under the Plan	5,000,000
Options granted in the period	359,700	325,000	900,000
Discretionary bonus		$ 0.1
Remaining shares available for grant under the Plan	3,493,200
Contractual life of stock options and other awards under share-based compensation plans	10 years
2011 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized under the Plan	3,500,000
Options granted in the period	300,000	2,000,000	1,225,000
Granted	400,000
Remaining shares available for grant under the Plan	1,217,000
Contractual life of stock options and other awards under share-based compensation plans	10 years
Restricted Stock [Member] \| 2008 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	0	205,532
December 2010 Stock Option Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in the period				100,000
Option Vesting Schedule [Abstract]
Vesting percentage, year one	50.00%
Vesting percentage, year two	50.00%
July 2011 Stock Option Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	1,066,600
Option Vesting Schedule [Abstract]
Vesting percentage, year one	33.00%
Vesting percentage, year two	33.00%
Vesting percentage, year three	34.00%
All Other Stock Option Awards [Member]
Option Vesting Schedule [Abstract]
Vesting percentage, year two	25.00%
Vesting percentage, year three	25.00%
Vesting percentage, year four	25.00%
Vesting percentage, year five	25.00%
Chief Executive Officer [Member] \| 2011 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted					2,000,000
Option Vesting Schedule [Abstract]
Vesting percentage, upon receipt	25.00%
Vesting percentage, year one	25.00%
Vesting percentage, year two	25.00%
Vesting percentage, year three	25.00%