Operating Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Schedule of segment revenue operating income from continuing operations and depreciation and amortization
Total revenue	$ 13,959	$ 12,999	$ 38,085	$ 38,855
Operating income (loss)	4,793	4,257	11,704	12,590
Depreciation and amortization	734	789	2,214	2,393
Medical Device [Member]
Schedule of segment revenue operating income from continuing operations and depreciation and amortization
Total revenue	10,269	9,559	27,889	29,372
Operating income (loss)	5,173	4,574	13,226	15,035
Depreciation and amortization	355	397	1,073	1,230
In Vitro Diagnostics [Member]
Schedule of segment revenue operating income from continuing operations and depreciation and amortization
Total revenue	3,690	3,440	10,196	9,483
Operating income (loss)	1,070	1,439	3,246	3,354
Depreciation and amortization	193	200	582	598
Corporate [Member]
Schedule of segment revenue operating income from continuing operations and depreciation and amortization
Operating income (loss)	(1,450)	(1,756)	(4,768)	(5,799)
Depreciation and amortization	$ 186	$ 192	$ 559	$ 565