Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2023

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 years ended December 31, 2023 and 2022 (in thousands):

	Year Ended December 31,
	2023		2022
Series B Convertible Preferred Stock:
Balance at beginning of period	$	25,323	$	24,117
Cumulative dividends on Series B convertible preferred stock		1,266		1,206
Balance at end of period	$	26,589	$	25,323
Number of Common Shares Issuable Upon Conversion:
Number of shares at beginning of period		6,331		6,029
Cumulative dividends on Series B convertible preferred stock		316		302
Number of shares at end of period		6,647		6,331

Summary of Common Stock Reserved for Future Issuance

Common Stock Reserved for Future Issuance

Common stock reserved for future issuance as of December 31, 2023 was as follows:

Exercise of outstanding stock options, vesting of restricted stock units ("RSU"), and issuance of RSUs and performance stock units ("PSU") vested but not released	1,303,638
Employee Stock Purchase Plan	293,888
Shares of common stock available for grant under the 2011 Plan	374,710
Shares of common stock issuable upon conversion of Series B convertible preferred stock	7,541,449
Total	9,513,685