Stock-based Compensation Plans (Tables)

3 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Stock-based Compensation Expenses

Stock-based compensation expense was reported as follows in the condensed consolidated statements of operations:

	Three Months Ended December 31,
(In thousands)	2023		2022
Product costs	$	72	$	67
Research and development		370		374
Selling, general and administrative		1,526		1,524
Total	$	1,968	$	1,965

Summary of Stock Option Grant Activity

Stock option grant activity was as follows:

	Three Months Ended December 31,
	2023		2022
Stock option grant activity:
Stock options granted		250,000		269,000
Weighted average grant date fair value	$	15.82	$	15.53
Weighted average exercise price	$	33.64	$	35.97