Development Award and Deferred Revenue (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2017 | ||||||||||||||||||||||||||||||||||||||||||||||
| Deferred Revenue Disclosure [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Deferred Revenue |
Deferred revenue consisted of the following:
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- Definition Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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