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Subsequent Events
9 Months Ended
Sep. 30, 2019
Subsequent Events [Abstract]  
Subsequent Events

14.

Subsequent Events

In October 2019, the Company drew $5.0 million from Tranche 3 of the 2019 Loan and concurrently issued to SVB and WestRiver warrants to purchase an aggregate of 24,262 shares of common stock with an exercise price of $3.88. Upon the draw of Tranche 3, the interest-only period of the 2019 Loan was extended to June 30, 2020, followed by an amortization period of 33 months of equal monthly payments of principal plus interest until paid in full.