Revenue - Summary of Revenues Disaggregated by Product Classification and Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation Of Revenue [Line Items]
Total revenue	$ 24,854	$ 23,873	$ 73,963	$ 81,165
Product Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	13,919	12,084	40,227	33,969
Royalties [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	8,795	8,796	26,738	38,182
Research, Development and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	2,140	2,993	6,998	9,014
Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	24,854	23,873	73,963	81,165
Operating Segments [Member] | Medical Device [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	17,528	16,755	52,889	60,858
Operating Segments [Member] | Medical Device [Member] | Product Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	6,741	5,493	19,970	15,464
Operating Segments [Member] | Medical Device [Member] | Royalties [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	7,771	7,752	23,015	23,135
Operating Segments [Member] | Medical Device [Member] | License Fees [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,024	1,044	3,723	15,047
Operating Segments [Member] | Medical Device [Member] | Research, Development and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,992	2,466	6,181	7,212
Operating Segments [Member] | In Vitro Diagnostics [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	7,326	7,118	21,074	20,307
Operating Segments [Member] | In Vitro Diagnostics [Member] | Product Sales [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	7,178	6,591	20,257	18,505
Operating Segments [Member] | In Vitro Diagnostics [Member] | Research, Development and Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 148	$ 527	$ 817	$ 1,802