Income Taxes (Tables)	12 Months Ended
Dec. 31, 2012
Income Taxes [Abstract]
Computation of U.S. federal income tax rate to pretax loss from continuing operations	Computation of U.S. federal income tax rate to pretax loss from continuing operations
Summary of deferred tax assets and liabilities	Summary of deferred tax assets and liabilities

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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