Subsequent Event	3 Months Ended
Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Event	10. Subsequent Event On April 7, 2020, the Company and certain of its subsidiaries entered into a Loan and Security Agreement (the “Loan Agreement”) with the lenders referred to therein (the “Lenders”), and Silicon Valley Bank, as collateral agent. The Loan Agreement provides for (i) a secured term A loan facility (the “Term A Loan Facility”) of up to $10.0 million and (ii) a secured term B loan facility (the “Term B Loan Facility”) of up to $5.0 million that is available upon the Company satisfying certain milestones. The Term A Loan Facility matures on November 1, 2022; provided, that if the Term B Loan Facility is funded, the facilities instead mature on September 1, 2023. The loan will bear interest at the greater of (i) 4.50% and (ii) the sum of (a) the Prime Rate as reported in The Wall Street Journal plus (b) 1.25%. In addition, under the Loan Agreement, the Company agreed to issue the Lenders warrants to purchase shares of the Company’s common stock. On April 7, 2020, warrants to purchase 25,000 shares of the Company’s common stock were issued with a warrant exercise price of $22.06 per share. Additional warrants exercisable for 8,333 shares of common stock will be issued in connection with the Term B Loan Facility, if funded.

Subsequent Event

3 Months Ended

Mar. 31, 2020

10. Subsequent Event

On April 7, 2020, the Company and certain of its subsidiaries entered into a Loan and Security Agreement (the “Loan Agreement”) with the lenders referred to therein (the “Lenders”), and Silicon Valley Bank, as collateral agent. The Loan Agreement provides for (i) a secured term A loan facility (the “Term A Loan Facility”) of up to $10.0 million and (ii) a secured term B loan facility (the “Term B Loan Facility”) of up to $5.0 million that is available upon the Company satisfying certain milestones. The Term A Loan Facility matures on November 1, 2022; provided, that if the Term B Loan Facility is funded, the facilities instead mature on September 1, 2023. The loan will bear interest at the greater of (i) 4.50% and (ii) the sum of (a) the Prime Rate as reported in The Wall Street Journal plus (b) 1.25%.

In addition, under the Loan Agreement, the Company agreed to issue the Lenders warrants to purchase shares of the Company’s common stock. On April 7, 2020, warrants to purchase 25,000 shares of the Company’s common stock were issued with a warrant exercise price of $22.06 per share. Additional warrants exercisable for 8,333 shares of common stock will be issued in connection with the Term B Loan Facility, if funded.