Segment and Geographical Information - Segment Revenue, Operating Income (Loss) and Depreciation and Amortization (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Revenue	$ 24,344	$ 22,227	$ 69,261	$ 58,298
Operating income (loss)	1,017	(6,250)	2,594	(6,359)
Depreciation and amortization	1,887	1,605	5,462	4,711
Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenue	24,344	22,227	69,261	58,298
Operating income (loss)	3,228	(4,017)	8,932	(82)
Operating Segments [Member] \| Medical Device [Member]
Segment Reporting Information [Line Items]
Revenue	18,945	16,701	53,504	43,527
Operating income (loss)	753	(6,193)	1,087	(6,351)
Depreciation and amortization	1,481	1,333	4,315	3,929
Operating Segments [Member] \| In Vitro Diagnostics [Member]
Segment Reporting Information [Line Items]
Revenue	5,399	5,526	15,757	14,771
Operating income (loss)	2,475	2,176	7,845	6,269
Depreciation and amortization	120	101	353	291
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	(2,211)	(2,233)	(6,338)	(6,277)
Depreciation and amortization	$ 286	$ 171	$ 794	$ 491

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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