Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 69,074	$ 59,496
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(29,891)	(23,712)
Property, Plant and Equipment, Net	39,183	35,784	25,209
Depreciation	6,974	6,210	4,501
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	1,932	1,952
Building and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	14,914	14,420
Machinery, Furniture, and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	38,032	33,075
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	9,868	8,276
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 4,328	$ 1,773