Fair Value of Financial Instruments (Tables)

12 Months Ended

Sep. 30, 2015

Fair Value of Company's Short-term Investments and Foreign Currency Forward Contracts

The following tables present the fair value of the Company’s short-term investments and foreign currency forward contracts at September 30, 2015 and 2014, respectively, by valuation hierarchy and input (in thousands):

	AS OF SEPTEMBER 30, 2015
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable (Level 2)		Significant Unobservable (Level 3)
Short-term investments:
Corporate bonds	$	15,161	$	15,161	$	—	$	—
Government bonds		2,951		2,951		—		—
Foreign currency forward contract		(18)		—		(18)		—
Total	$	18,094	$	18,112	$	(18)	$	—
	AS OF SEPTEMBER 30, 2014
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable (Level 2)		Significant Unobservable (Level 3)
Short-term investments:
Corporate bonds	$	14,235	$	14,235	$	—	$	—
Government bonds		5,626		5,626		—		—
Foreign currency forward contract		795		—		795		—
Total	$	20,656	$	19,861	$	795	$	—