Stockholders' Equity (Summary Of The Option And Stock Appreciation Rights Activity) (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Options/SARs, Outstanding, December 31, 2013	188,947
Number of Options/SARs, Granted	336,850
Number of Options/SARs, Exercised	0
Number of Options/SARs, Forfeited	(38,651)
Number of Options/SARs, Outstanding, December 31, 2014	487,146
Weighted Average Exercise Price per Share, Outstanding, December 31, 2013	$ 48.38
Weighted Average Exercise Price per Share, Granted	$ 4.04
Weighted Average Exercise Price per Share, Forfeited	$ 54.80
Weighted Average Exercise Price per Share, Outstanding, December 31, 2014	$ 17.21
Minimum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Outstanding, December 31, 2013	$ 1.69	$ 1.69
Range of Exercise Price, Granted	$ 4.04
Range of Exercise Price, Forfeited	$ 1.69
Range of Exercise Price, Outstanding, December 31, 2014	$ 1.69	$ 1.69
Maximum [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Price, Outstanding, December 31, 2013	$ 116.40	$ 116.40
Range of Exercise Price, Granted	$ 5.19
Range of Exercise Price, Forfeited	$ 116.40
Range of Exercise Price, Outstanding, December 31, 2014	$ 116.40	$ 116.40

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Exercise Price

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- Definition

Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Exercise Price

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- Definition

Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Exercise Price

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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- Definition

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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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-Topic 505

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