Segment Information - Segment Revenue, Operating (Loss) Income and Depreciation and Amortization (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Revenue	$ 23,873	$ 26,883	$ 81,165	$ 72,321
Operating (loss) income	(2,384)	1,164	7,192	742
Depreciation and amortization	1,844	1,790	5,610	5,390
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	23,873	26,883	81,165	72,321
Operating (loss) income	887	3,786	15,887	7,971
Operating Segments [Member] | Medical Device [Member]
Segment Reporting Information [Line Items]
Revenue	16,755	20,514	60,858	54,222
Operating (loss) income	(2,491)	532	5,480	(1,344)
Depreciation and amortization	1,631	1,424	5,004	4,318
Operating Segments [Member] | In Vitro Diagnostics [Member]
Segment Reporting Information [Line Items]
Revenue	7,118	6,369	20,307	18,099
Operating (loss) income	3,378	3,254	10,407	9,315
Depreciation and amortization	121	112	314	331
Corporate [Member]
Segment Reporting Information [Line Items]
Operating (loss) income	(3,271)	(2,622)	(8,695)	(7,229)
Depreciation and amortization	$ 92	$ 254	$ 292	$ 741