Term Loan (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Outstanding Loan and Unamortized Debt Discount Balances

The outstanding loan and unamortized debt discount balances as of September 30, 2018 in accordance with the repayment terms under Amended and Restated Loan Agreement are as follows:

	September 30,
	2018
Term loan	$	15,500
Less: unamortized discount on loan		(657	)
Less: current portion		—
Accrued portion of final payment fee		43
Loan payable, long-term	$	14,886

Schedule of Principal Payments on Outstanding Debt

Scheduled principal payments on outstanding debt, excluding the final payment fee of $1,008, as of September 30, 2018 in accordance with the repayment terms under Amended and Restated Loan Agreement, are as follows:

2018	$	—
2019		—
2020		5,167
2021		6,200
2022		4,133
Total	$	15,500