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Subsequent Events (Details) (Subsequent Event [Member], Convertible Notes, USD $)
In Millions, unless otherwise specified
1 Months Ended
Jul. 31, 2014
Subsequent Event [Line Items]  
Number of consecutive trading days to calculate number of shares of common stock to be issued upon conversion 25 days
Scenario, Forecast [Member]
 
Subsequent Event [Line Items]  
Debt Instrument Convertible Principal Amount Holders Intend to Convert $ 4.7