Revenue - Summary of Revenues Disaggregated by Product Classification and Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Total revenue	$ 24,933	$ 23,003
Product Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	14,234	12,344
Royalties [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	8,765	8,099
Research, Development and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,934	2,560
Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	24,933	23,003
Operating Segments [Member] | Medical Device [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	19,018	16,908
Operating Segments [Member] | Medical Device [Member] | Product Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	8,380	6,788
Operating Segments [Member] | Medical Device [Member] | Royalties [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	7,409	6,886
Operating Segments [Member] | Medical Device [Member] | License Fees [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,356	1,213
Operating Segments [Member] | Medical Device [Member] | Research, Development and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,873	2,021
Operating Segments [Member] | In Vitro Diagnostics [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	5,915	6,095
Operating Segments [Member] | In Vitro Diagnostics [Member] | Product Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	5,854	5,556
Operating Segments [Member] | In Vitro Diagnostics [Member] | Research, Development and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 61	$ 539