Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 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 and nine months ended September 30, 2024 and 2023 (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Series B Convertible Preferred Stock:
Balance at beginning of period	$	27,070	$	25,951	$	26,589	$	25,323
Cumulative dividends on Series B convertible preferred stock		201		319		682		947
Balance at end of period	$	27,271	$	26,270	$	27,271	$	26,270
Number of Common Shares Issuable Upon Conversion:
Number of shares at beginning of period		6,767		6,488		6,647		6,331
Cumulative dividends on Series B convertible preferred stock		50		80		170		237
Number of shares at end of period		6,817		6,568		6,817		6,568

Summary of Common Stock Reserved for Future Issuance

Common Stock Reserved for Future Issuance

Common stock reserved for future issuance as of September 30, 2024 was as follows:

Exercise of outstanding stock options, vesting of restricted stock units ("RSUs"), vesting of performance stock units ("PSUs") and issuance of RSUs vested but not released	1,972,044
Employee Stock Purchase Plan	293,888
Shares of common stock available for grant under the 2011 Plan	579,575
Shares of common stock issuable upon conversion of Series B convertible preferred stock	7,541,449
Total	10,386,956