Commitments and Contingencies (Details Textual)  | 
Jan. 15, 2016  | 
|---|---|
| City Of Hope [Member] | |
| Loss Contingencies [Line Items] | |
| Failed Contingency Damages Awarded Percentage | 15.00% | 
| X | ||||||||||
- Definition Percentage of failed contingency damages awarded to the plaintiff in the legal matter. No definition available. 
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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| X | ||||||||||
- Details 
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