Stock-based Compensation Plans (Tables)

9 Months Ended

Jun. 30, 2023

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-based Compensation Expenses

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

	Three Months Ended June 30,				Nine Months Ended June 30,
(In thousands)	2023		2022		2023		2022
Product costs	$	63	$	62	$	202	$	170
Research and development		353		355		1,056		1,086
Selling, general and administrative		1,499		1,382		4,404		3,942
Total	$	1,915	$	1,799	$	5,662	$	5,198

Summary of Stock Option Grant Activity

Stock option grant activity was as follows:

	Nine Months Ended June 30,
	2023		2022
Stock option grant activity:
Stock options granted		305,000		312,000
Weighted average grant date fair value	$	15.03	$	16.11
Weighted average exercise price	$	34.79	$	42.78