Acquisition of Bioline Group (Details) (USD $) In Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Consolidated results of the company
Net Sales	$ 41,349	$ 40,052	$ 41,059	$ 37,263	$ 35,539	$ 33,857	$ 31,147	$ 42,457	$ 159,723	$ 143,000	$ 148,274
Operating Income (Loss)									40,033	41,138	48,779
Net Earnings (Loss)	6,710	6,836	7,260	6,025	5,322	6,424	5,980	8,921	26,831	26,647	32,759
Bioline Group [Member]
Consolidated results of the company
Net Sales									14,869	2,084
Operating Income (Loss)									26	(126)
Net Earnings (Loss)									$ 240	$ (1,262)