Reportable Segment Information - Segment Revenue, Operating Income and Depreciation and Amortization (Detail) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Total revenue	$ 16,541	$ 14,205
Operating income	3,939	5,034
Depreciation and amortization	909	683
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating income	5,473	6,613
Operating Segments [Member] | Medical Device [Member]
Segment Reporting Information [Line Items]
Total revenue	12,247	10,635
Operating income	3,830	5,515
Depreciation and amortization	487	270
Operating Segments [Member] | In Vitro Diagnostics [Member]
Segment Reporting Information [Line Items]
Total revenue	4,294	3,570
Operating income	1,643	1,098
Depreciation and amortization	222	213
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income	(1,534)	(1,579)
Depreciation and amortization	$ 200	$ 200