Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Stock Based Awards (Details 1)

v2.4.1.9

Stock Based Awards (Details 1)	12 Months Ended
Stock Based Awards (Details 1)	Dec. 31, 2014	Dec. 31, 2013
Risk-free interest rate		1.11%
Expected dividend yield		0.00%
Expected volatility	108.00%	108.00%
Expected term (in years)	6 years 29 days	6 years 29 days
Minimum [Member]
Risk-free interest rate	0.25%
Expected volatility	79.00%
Expected term (in years)	1 year 1 month 28 days
Maximum [Member]
Risk-free interest rate	2.11%
Expected volatility	103.00%
Expected term (in years)	9 years 18 days
2007 Equity Incentive Plan [Member] \| Minimum [Member]
Risk-free interest rate	1.08%
2007 Equity Incentive Plan [Member] \| Maximum [Member]
Risk-free interest rate	2.51%

- Definition

Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258

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- Definition

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.

+ References

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- Definition

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+ References

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- Definition

Weighted average expected volatility of stock price.

+ References

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