Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Significant Accounting Policies [Line Items]

Schedule of Impact of Adoption of New Leasing Standard

The impact of the adoption of the new leasing standard on the December 31, 2017 balance sheet is as follows (in thousands):

	December 31, 2017
	As Previously Reported			New Lease Standard Adjustment			As restated
Operating lease right-of-use assets, net	$	—		$	472		$	472
Property and equipment, net		16,567			(16,143	)		424
Deferred rent, current		87			(87	)		—
Operating lease liabilities, current		—			559			559
Other liabilities, current		902			(902	)		—
Other liabilities, net of current		15,315			(15,315	)		—
Accumulated deficit		(216,882	)		74			(216,808	)

ASC 606 [Member]

Significant Accounting Policies [Line Items]

Schedule of Impacts Related to ASC 606 Adoption

The remaining impacts related to ASC 606 adoption were as follows (in thousands):

	June 30, 2018
	As Reported under ASC 606		Balance without Adoption of ASC 606		Effect of Change Higher/(Lower)
Balance Sheet:
Contract asset (within other    current assets)	$	21	$	—	$	21
Deferred revenue, current		—		1,382		(1,382	)
Income Statement:
Revenue for the three months    ended June 30, 2018		843		1,515		(672	)
Revenue for the six months    ended June 30, 2018		1,785		2,940		(1,155	)