Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Summary of Series B Preferred Stock and Accretion of Dividends

The following table summarizes Series B convertible preferred stock and the accretion of dividend activity for the three months ended March 31, 2024 and 2023 (in thousands):

	Three Months Ended March 31,
	2024		2023
Series B Convertible Preferred Stock:
Balance at beginning of period	$	26,589	$	25,323
Cumulative dividends on Series B convertible preferred stock		248		313
Balance at end of period	$	26,837	$	25,636
Number of Common Shares Issuable Upon Conversion:
Number of shares at beginning of period		6,647		6,331
Cumulative dividends on Series B convertible preferred stock		62		78
Number of shares at end of period		6,709		6,409

Summary of Common Stock Reserved for Future Issuance

Common Stock Reserved for Future Issuance

Common stock reserved for future issuance as of March 31, 2024 was as follows:

Exercise of outstanding stock options, vesting of restricted stock units ("RSUs"), and issuance of RSUs vested but not released	1,304,248
Employee Stock Purchase Plan	293,888
Shares of common stock available for grant under the 2011 Plan	286,899
Shares of common stock issuable upon conversion of Series B convertible preferred stock	7,541,449
Total	9,426,484