Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2019

Commitments And Contingencies Disclosure [Abstract]

Schedule of Other Information related to Stamford Lease

Other information related to the Stamford Lease was as follows:

	Three Months Ended
	March 31, 2019
Cash paid for amounts included in the    measurement of lease liability:
Operating cash outflows from operating lease	$	(300	)
ROU assets obtained in exchange for new    operating lease liabilities	$	3,636
Remaining lease term-operating lease	4.7 years
Discount rate - operating lease		7.0	%

Schedule of Future Minimum Lease Payments under Non-cancellable Operating Leases, Reconciliation of Undiscounted Cash Flows to the Operating Lease Liability

Future minimum lease payments under non-cancellable operating leases, as well as a reconciliation of these undiscounted cash flows to the operating lease liability as of March 31, 2019, were as follows:

Year Ending December 31,
2019 (Excluding the three months ended March 31, 2019)	$	915
2020		1,239
2021		1,264
2022		1,288
2023		1,164
Total future minimum lease payments, undiscounted		5,870
Less imputed interest		(882	)
Total	$	4,988
Operating lease liability reported as of March 31, 2019:
Operating lease liability-current	$	901
Operating lease liability - non-current		4,087
Total	$	4,988