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Restructuring (Details) $ in Thousands					9 Months Ended	12 Months Ended
Restructuring (Details) $ in Thousands	Feb. 20, 2015 USD ($) employee	Jan. 22, 2015 USD ($) employee	Oct. 31, 2013 employee	Sep. 27, 2013 employee	Jun. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2013 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charge					$ 518	$ 152
Payments for Restructuring					(497)	(431)
Reversals of Restructuring Charge					(9)	(71)
Restructuring Reserve					12	0	$ 350
Employee Termination Costs \| Fiscal 2015 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charge					518	0
Payments for Restructuring					(497)	0
Reversals of Restructuring Charge					(9)	0
Restructuring Reserve					12	0	0
Employee Termination Costs \| Fiscal 2014 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charge					0	152
Payments for Restructuring					0	(152)
Reversals of Restructuring Charge					0	0
Restructuring Reserve					0	0	0
Employee Termination Costs \| Fiscal 2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charge					0	0
Payments for Restructuring					0	(279)
Reversals of Restructuring Charge					0	(71)
Restructuring Reserve					$ 0	0	350
UNITED STATES \| Fiscal 2015 Restructuring
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated \| employee	21
UNITED STATES \| Fiscal 2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated \| employee				15
UNITED STATES \| Employee Termination Costs \| Fiscal 2015 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 300
UNITED STATES \| Employee Termination Costs \| Fiscal 2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charge							$ 400
INDIA \| Fiscal 2015 Restructuring
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated \| employee		38
INDIA \| Fiscal 2014 Restructuring
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated \| employee			40
INDIA \| Employee Termination Costs \| Fiscal 2015 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charge		$ 200
INDIA \| Employee Termination Costs \| Fiscal 2014 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charge						$ 200