Segment Information - Segment Revenue, Operating (Loss) Income and Depreciation and Amortization (Detail) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Revenue	$ 22,616	$ 22,241
Operating (loss) income	(266)	712
Depreciation and amortization	1,804	1,756
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	22,616	22,241
Operating (loss) income	2,176	2,812
Operating Segments [Member] | Medical Device [Member]
Segment Reporting Information [Line Items]
Revenue	17,404	17,258
Operating (loss) income	(423)	357
Depreciation and amortization	1,455	1,388
Operating Segments [Member] | In Vitro Diagnostics [Member]
Segment Reporting Information [Line Items]
Revenue	5,212	4,983
Operating (loss) income	2,599	2,455
Depreciation and amortization	110	116
Corporate [Member]
Segment Reporting Information [Line Items]
Operating (loss) income	(2,442)	(2,100)
Depreciation and amortization	$ 239	$ 252