Subsequent Events - Building Rent (Details) - Subsequent Event	Jan. 29, 2019 USD ($) ft²
Subsequent Event [Line Items]
Area of Building Leased \| ft²	35,000
Monthly Base Rent
Approved Lease Improvement Reimbursement \| $	$ 100,000

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.

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