Stockholders' Equity (Tables)

3 Months Ended

Jun. 30, 2022

Class Of Stock [Line Items]

Schedule of Stock-based Compensation Expense

Stock-based compensation expense for all stock-based awards consists of the following (in thousands):

	Three Months Ended		Three Months Ended
	June 30, 2022		June 30, 2021
Research and development	$	121	$	76
General and administrative	$	539	$	339
Total	$	660	$	415

Fair Value of Employee Stock Options

The fair value of stock options was estimated at the grant date using the following weighted average assumptions:

	Three Months Ended			Three Months Ended
	June 30, 2022			June 30, 2021*
Dividend yield		—			—
Volatility		94.50	%		0.00	%
Risk-free interest rate		2.97	%		0.00	%
Expected life of options	6.00 years			0
Weighted average grant    date fair value	$	2.25		$	—

*No awards granted during the three months ended June 30, 2021.

Summary of Stock Option Activity

The following table summarizes the Company’s stock option activity from March 31, 2022 to June 30, 2022:

	Options Outstanding		Weighted Average Exercise Price		Aggregate Intrinsic Value
Outstanding at March 31, 2022		1,203,671	$	7.36	$	71,650
Options granted		73,659	$	2.91	$	—
Options cancelled / forfeited		—	$	—	$	—
Options exercised		—	$	—	$	—
Outstanding at June 30, 2022		1,277,330	$	7.11	$	—
Vested and Exercisable at June 30, 2022		286,972	$	7.65	$	—

Common Stock Reserved for Future Issuance

Common stock reserved for future issuance consisted of the following at June 30, 2022:

Common stock issuable pursuant to options outstanding and reserved under the 2012    Plan	1,227,330
Common stock reserved under the 2012 Plan	636,674
Common stock reserved under the ESPP	59,435
Common stock reserved under the 2021 Inducement Equity Plan	700,000
Common stock issuable pursuant to restricted stock units outstanding under the 2012 Plan	14,130
Common stock issuable pursuant to options outstanding and reserved under the Inducement Plan	50,000
Total at June 30, 2022	2,687,569

Restricted stock units (RSUs) [Member]

Class Of Stock [Line Items]

Summary of Company's RSUs Activity and Performance-Based RSUs Activity

The following table summarizes the Company’s RSUs (not including performance-based RSUs) activity from March 31, 2022 through June 30, 2022:

	Number of Shares			Weighted Average Price
Unvested at March 31, 2022		15,500		$	10.58
Granted		—		$	—
Vested		(1,370	)	$	11.11
Cancelled / forfeited		—		$	—
Unvested at June 30, 2022		14,130		$	10.53