Gain/Loss Fair Value Debentures in Income statement

No definition available.

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

Warrants, Fair Value Disclosure

+ References

No definition available.

+ Details

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- Definition

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

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

+ Details

Name:	us-gaap_AccruedLiabilitiesFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ 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 (a)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

+ Details

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- Details

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Available-for-Sale Securities

-URI http://asc.fasb.org/extlink&oid=6505594

+ Details

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- Definition

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Convertible Security

-URI http://asc.fasb.org/extlink&oid=6509036

+ Details

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Period Type:	instant

- Definition

Interest rate stated in the contractual debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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

+ Details

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Balance Type:	na
Period Type:	instant

- 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

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=7578670&loc=d3e19207-110258

+ Details

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- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock 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=7578670&loc=d3e19207-110258

+ Details

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Period Type:	duration

- Definition

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

+ 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=7578670&loc=d3e19207-110258

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ 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 (bbb)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

+ Details

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- Definition

This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

+ Details

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Financial Instruments (Details) (USD $)	3 Months Ended		9 Months Ended
Financial Instruments (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Recurring	Sep. 30, 2011 Recurring	Sep. 30, 2012 Recurring Level 1	Dec. 31, 2011 Recurring Level 1	Sep. 30, 2012 Recurring Level 2	Dec. 31, 2011 Recurring Level 2	Sep. 30, 2012 Recurring Level 3	Dec. 31, 2011 Recurring Level 3	Sep. 30, 2012 Recurring Total	Dec. 31, 2011 Recurring Total	Sep. 30, 2012 4.00% Convertible Debentures Recurring Level 1	Dec. 31, 2011 4.00% Convertible Debentures Recurring Level 1	Sep. 30, 2012 4.00% Convertible Debentures Recurring Level 2	Dec. 31, 2011 4.00% Convertible Debentures Recurring Level 2	Sep. 30, 2012 4.00% Convertible Debentures Recurring Level 3	Dec. 31, 2011 4.00% Convertible Debentures Recurring Level 3	Sep. 30, 2012 4.00% Convertible Debentures Recurring Total	Dec. 31, 2011 4.00% Convertible Debentures Recurring Total	Sep. 30, 2012 5.00% Convertible Debentures Recurring Level 1	Sep. 30, 2012 5.00% Convertible Debentures Recurring Level 2	Sep. 30, 2012 5.00% Convertible Debentures Recurring Level 3	Sep. 30, 2012 5.00% Convertible Debentures Recurring Total	Sep. 30, 2012 Convertible Debt 4.00% Convertible Debentures	Sep. 30, 2012 Convertible Debt 5.00% Convertible Debentures
Assets, Fair Value Disclosure [Abstract]
Available-for-sale investments							$ 17,817,000	$ 1,416,000	$ 0	$ 0	$ 0	$ 0	$ 17,817,000	$ 1,416,000
Warrants								0		555,000		0		555,000
Financial assets							17,817,000	1,416,000	0	555,000	0	0	17,817,000	1,971,000
Liabilities, Fair Value Disclosure [Abstract]
Convertible debentures															44,415,000	121,625,000	0	0	0	0	44,415,000	121,625,000	0	0	105,214,000	105,214,000
Financial liabilities							44,415,000	121,625,000	0	0	105,214,000	0	149,629,000	121,625,000
Debt instrument interest rate																											4.00%	5.00%
Accrued interest																					600,000					1,300,000
Discount rate			8.50%
Risk free interest rate			0.63%
Volatility rate			40.00%
Remaining life			4 years 8 months 1 day
(Gain)/loss on fair value of convertible debentures	$ 30,055,000	$ 2,084,000	$ 32,092,000	$ (22,208,000)	$ 32,100,000	$ (22,200,000)