Equity Incentive Plans (Tables)

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Summary of the Option Award Activity

The following table summarizes the stock option award activity for the six months ended June 30, 2024:

	Outstanding			Exercisable
January 1, 2024		14,661			6,110
Granted		42,000			—
Vested		—			2,201
Canceled or expired		(2,292	)		(781	)
Exercised		—			—
June 30, 2024		54,369			7,530

Summary of Non-vested Restricted Common Stock Awards Issued to Employees

The following table sets forth the status of the Company’s non-vested restricted common stock awards:

				Weighted-Average
	Number of			Grant Date
	Shares			Fair Value Per Share
January 1, 2024		—		$	-
Issuance of restricted common stock		7,500		$	1.34
Vested		(1,875	)	$	1.34
Cancelled		—		$	-
June 30, 2024		5,625		$	1.34

Summary of Total Stock-based Compensation Expense Recorded Related to Share-based Payment Awards

Total stock-based compensation recorded in the condensed statements of operations is allocated as follows (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Research and development	$	23	$	27	$	45	$	58
Sales and marketing		1		1		1		3
General and administrative		30		53		62		104
Total stock-based compensation	$	54	$	81	$	108	$	165