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Leases - Schedule of Future Lease Payment Under Finance Lease (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Remainder of 2019	$ 565
2020	9
2021	9
2022	9
2023	10
Total minimum lease payments	602
Less: amount representing interest payments	(11)
Present value of future minimum lease payment	591
Less: unamortized discount	(6)
Present value of future net minimum lease payments	585
Less: current portion, net of unamortized discount	(553)
Finance lease obligation, net of current portion	$ 32

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Amount, after accumulated amortization, of debt discount.

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