Commitment Value Under Purchase Agreement

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- Definition

Discount Applied To Weighted Average Price

+ References

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- Definition

Stock Issued During Period, Shares, Warrant Inducements

+ References

No definition available.

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- Definition

Stock Issued During Period, Value, Warrant Inducements

+ References

No definition available.

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- Definition

Term Of Agreement In Months

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- Definition

weighted average estimated fair value of restricted stock

+ References

No definition available.

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

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- Definition

The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

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- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

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-Subparagraph (SX 210.3-04)

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- Definition

Aggregate value of stock related to Restricted Stock Awards issued during the period.

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Shareholders' Equity (Details) (USD $)	12 Months Ended
Shareholders' Equity (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2014	Sep. 28, 2011	Oct. 10, 2012	Oct. 14, 2011	Jan. 18, 2011	Jun. 02, 2010	Oct. 29, 2009	May 09, 2009
Class of Stock [Line Items]
weighted average estimated fair value of restricted stock	$ 5.44	$ 6.53
Stock Issued During Period, Shares, Restricted Stock Award, Gross	917,907	514,700
Proceeds from Warrant Exercises	$ 1,720,725us-gaap_ProceedsFromWarrantExercises	$ 3,028,241us-gaap_ProceedsFromWarrantExercises	$ 6,604,418us-gaap_ProceedsFromWarrantExercises
Stock Issued During Period, Value, Warrant Inducements		62,014	228,676
Warrant inducements	0	40,407
Stock Issued During Period, Value, Restricted Stock Award, Gross	4,996,300	3,360,000
Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues	2,959,214	9,712,724	3,573,229
Stock Issued During Period, Value, Warrant Inducements		0	146
Warrant inducements		0	145,895.2
Warrant holder A [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	333,250
Proceeds from Issuance of Warrants	1,700,000
Aspire Capital Purchase Agreement [Member]
Class of Stock [Line Items]
Committment Value Under Purchase Agreement				$ 20,000,000	$ 20,000,000
Term Of Agreement In Months				24	24
Discount Applied To Weighted Average Price				5.00%
Non US Equity Plan [Member] \| Stock Options [Member]
Class of Stock [Line Items]
Common Stock, Shares Authorized						570,000
2009 Equity Plan [Member] \| Stock Options [Member]
Class of Stock [Line Items]
Common Stock, Shares Authorized	8,995,000	5,995,000				450,000	2,375,000	1,775,000	1,375,000	975,000	380,000