Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of September 30, 2013 (in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value as of September 30, 2013
Assets:
Cash equivalents	$	—	$	4,402	$	—	$	4,402
Available-for-sale debt securities:
U.S. government and government agency obligations		—		22,890		—		22,890
Mortgage-backed securities		—		8,216		—		8,216
Municipal bonds		—		3,059		—		3,059
Asset-backed securities		—		3,537		—		3,537
Corporate bonds		—		4,907		—		4,907
Total assets measured at fair value	$	—	$	47,011	$	—	$	47,011

The following table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of September 30, 2012 (in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Fair Value as of September 30, 2012
Assets:
Cash equivalents	$	—	$	5,101	$	—	$	5,101
Available-for-sale debt securities:
U.S. government and government agency obligations		—		28,854		—		28,854
Mortgage-backed securities		—		2,999		—		2,999
Municipal bonds		—		3,213		—		3,213
Asset-backed securities		—		598		—		598
Corporate bonds		—		6,886		—		6,886
Other assets		718		—		—		718
Total assets measured at fair value	$	718	$	47,651	$	—	$	48,369

Reconciliation of Financial Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs

The following table provides a reconciliation of fiscal 2012 financial assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (in thousands). Transfers of instruments into and out of Level 3 are based on beginning of year values.

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3) For the Year Ended September 30, 2012 Available-for-Sale Debt Securities
	Mortgage- Backed  Securities			Asset- Backed  Securities			Total
Balance at September 30, 2011	$	15		$	9		$	24
Transfers into Level 3		—			—			—
Transfers out of Level 3		(15	)		(9	)		(24	)
Total realized and unrealized gains (losses):
Included in other comprehensive income (loss)		—			—			—
Purchases, issuances, sales and settlements		—			—			—
Balance at September 30, 2012	$	—		$	—		$	—