Warrants

3 Months Ended

Mar. 31, 2019

Proceeds From Issuance Of Preferred Stock Preference Stock And Warrants [Abstract]

Warrants

Note 12. Warrants

In connection with certain of its redeemable convertible preferred stock issuances, convertible debt financings and other financing arrangements, the Company has issued warrants for shares of its common stock and various issues of its redeemable convertible preferred stock which have since been converted to common stock warrants. There have been no significant modifications or financial events relating to the warrants that were issued prior to December 31, 2018 since the disclosures made by the Company in its Annual Report on Form 10-K, filed with the SEC on March 7, 2019, other than the expiration of a warrant for 931 shares of common stock, in accordance with its terms, in March 2019.

The following table shows the common stock warrants outstanding as of March 31, 2019:

Shares of CommonStock Underlying Warrants		Exercise Price/Share		Expiration Date
	28,713	$	23.51	2024
	144,772		14.00	2022
	45,307		2.76	2026
	18,123		7.73	2028