Commitments and Contingencies - Lease Agreements (Details)		1 Months Ended	12 Months Ended
Jun. 11, 2015 USD ($) ft²	Nov. 30, 2015 USD ($) ft²	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Square footage of leased space \| ft²	26,100	2,300
Monthly lease rent	$ 68,000	$ 3,100
Rent expense			$ 602,000	$ 471,000	$ 315,000
Lease period		3 years

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration