The price per share of the conversion feature embedded for preferred stock.

No definition available.

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- Definition

This element represents minimum percentage holding of common stock on conversion of preferred stock.

+ References

No definition available.

+ Details

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- Definition

This element represents minimum percentage holding of on an as converted basis of preferred stock.

+ References

No definition available.

+ Details

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- Definition

This element represents number of directors of an entity.

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No definition available.

+ Details

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- Definition

Represents percentage of joint venture interest sold to axane.

+ References

No definition available.

+ Details

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- Definition

Represents percentage of right to purchase interest in joint venture in 2018 at a formula price.

+ References

No definition available.

+ Details

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- Definition

Represents percentage of right to purchase interest in joint venture in 2018 at a formula price to coventurer.

+ References

No definition available.

+ Details

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- Definition

Represents service charges received for services performed during period.

+ References

No definition available.

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- Definition

Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 4

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-Publisher FASB

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-Topic 210

-SubTopic 10

-Section S99

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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 equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

No definition available.

+ Details

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- Definition

Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 2, 3, 4, 5, 6, 7, 8

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Publisher FASB

-Name Accounting Standards Codification

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

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Subsequent Events (Details Textuals)			0 Months Ended
Subsequent Events (Details Textuals)	Mar. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	May 08, 2013 Subsequent Event Hypulsion Sas Joint Venture Axane, S.A. ("Axane") USD ($)	May 08, 2013 Subsequent Event Hypulsion Sas Joint Venture Axane, S.A. ("Axane") EUR (€)	May 08, 2013 Subsequent Event Securities Purchase Agreement (the "Purchase Agreement") Air Liquide Investissements d'Avenir et de Demonstration ("Air Liquide") Series C Preferred Stock USD ($) Director	May 08, 2013 Subsequent Event Securities Purchase Agreement (the "Purchase Agreement") Air Liquide Investissements d'Avenir et de Demonstration ("Air Liquide") Series C Preferred Stock EUR (€)	May 08, 2013 Subsequent Event Engineering Service Agreement Hypulsion Sas Joint Venture USD ($)	May 08, 2013 Subsequent Event Engineering Service Agreement Hypulsion Sas Joint Venture EUR (€)
Subsequent Event [Line Items]
Number of shares agreed to issue and sell to Air Liquide					10,500	10,500
Par value					$ 0.01
Aggregate purchase price for agreement					$ 2,600,000	€ 2,000,000
Initially expected owning percentage of Air Liquide					14.00%	14.00%
Par value common stock	$ 0.01	$ 0.01			$ 0.01
Number of directors entitled to designate to company's board of directors					1	1
Minimum percentage holding of common stock on conversion of preferred stock					5.00%	5.00%
Minimum percentage holding of on an as-converted basis of preferred stock					50.00%	50.00%
Dividend rate					8.00%	8.00%
Conversion price					$ 0.248794
Percentage of joint venture interest sold to axane			25.00%	25.00%
Cash purchase price joint venture interest sale			3,300,000	2,500,000
Ownership interest held by company			20.00%	20.00%
Ownership interest held by coventurer			80.00%	80.00%
Percentage of right to purchase interest in joint venture in 2018 at a formula price			60.00%	60.00%
Percentage of right to purchase interest in joint venture in 2018 at a formula price to coventurer			20.00%	20.00%
Engineering service charges received							$ 659,000	€ 500,000