Subsequent Events (Details) $ in Millions	Aug. 06, 2018 USD ($)
License Agreement with Shandong Luoxin Pharmaceutical Group Stock Co., Ltd \| Subsequent Event
Subsequent Event [Line Items]
Collaborative arrangement, upfront payment to be received	$ 12.0

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration