Stock-Based Compensation (Tables)

6 Months Ended

Sep. 30, 2022

Share-Based Payment Arrangement [Abstract]

Employee stock-based compensation expense

	Three Months Ended September 30,				Six Months Ended September 30,
(In thousands)	2022		2021		2022		2021
Cost of revenues	$	–	$	–	$	–	$	–
Research and development		–		–		–		–
Selling, general and administrative		113		55		327		114
Total stock-based compensation	$	113	$	55	$	327	$	114

Schedule of option activity

	Number of Shares			Weighted- Average Exercise Price
Outstanding at April 1, 2022		466,234		$	12.09
Options granted		–			–
Options exercised		–			–
Options forfeited		(58,165	)		5.67
Options expired		(2,211	)		136.39
Outstanding at September 30, 2022		405,858		$	12.34
Exercisable at September 30, 2022		197,503		$	19.42