Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2012

Fair Value Measurements [Abstract]

Schedule of assets and liabilities measured at fair value on a recurring basis

The following table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of June 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 June  30, 2012
Assets:
Cash equivalents	$	—	$	14,601	$	—	$	14,601
Available-for-sale debt securities:
U.S. government and government agency obligations		—		32,774		—		32,774
Mortgage-backed securities		—		3,305		—		3,305
Municipal bonds		—		3,212		—		3,212
Asset-backed securities		—		910		—		910
Corporate bonds		—		2,119		—		2,119
Other assets		877		—		—		877
Total assets measured at fair value	$	877	$	56,921	$	—	$	57,798

The following table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of September 30, 2011 (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, 2011
Assets:
Cash equivalents	$	—	$	8,419	$	—	$	8,419
Available-for-sale debt securities:
U.S. government and government agency obligations		—		30,603		—		30,603
Mortgage-backed securities		—		3,933		15		3,948
Municipal bonds		—		3,614		—		3,614
Asset-backed securities		—		1,279		9		1,288
Corporate bonds		—		2,497		—		2,497
Other assets		1,190		—		—		1,190
Total assets measured at fair value	$	1,190	$	50,345	$	24	$	51,559

Schedule of assets measured at fair value on a recurring basis using Significant unobservable inputs (Level 3)

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Nine Months Ended June 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 (loss) income		—			—			—
Purchases		—			—			—
Issuances		—			—			—
Sales		—			—			—
Settlements		—			—			—
Balance at June 30, 2012	$	—		$	—		$	—

	Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Nine Months Ended June 30, 2011 Available-for-Sale Debt Securities
	U.S.  Government Obligations			Mortgage- Backed  Securities			Total
Balance at September 30, 2010	$	704		$	69		$	773
Transfers into Level 3		—			—			—
Transfers out of Level 3		(695	)		(68	)		(763	)
Total realized and unrealized gains (losses):
Included in other comprehensive (loss) income		19			(1	)		18
Purchases		—			620			620
Issuances		—			—			—
Sales		(28	)		(620	)		(648	)
Settlements		—			—			—
Balance at June 30, 2011	$	—		$	—		$	—