Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Property And Equipment Details [Abstract]
Land	$ 1,952	$ 1,723
Buildings and Improvements, Gross	14,420	13,427
Machinery and Equipment, Gross	33,075	20,979
Computer Equipment Gross	8,276	5,864
Construction in Progress, Gross	1,773	2,203
Property, Plant and Equipment, Gross	59,496	44,196
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(23,712)	(18,987)
Property and equipment, net	35,784	25,209	15,238
Depreciation	$ 6,210	$ 4,501	$ 3,692