Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2011

Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities of the Company measured at fair value on a recurring basis as of December 31, 2011 and September 30, 2011 are summarized as follows (in thousands):

			Fair Value Measurements at Reporting Date Using
Description	December  31, 2011		Quoted Prices  in Active Markets for Identical Assets (Level 1)		Significant  Other Observable Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)
Assets
Cash Equivalents	$	11,707	$	11,707	$	—	$	—
Available-for-sale securities		145,291		70,475		74,816		—
Total Assets	$	156,998	$	82,182	$	74,816	$	—

			Fair Value Measurements at Reporting Date Using
Description	September 30, 2011		Quoted Prices in Active  Markets for Identical Assets (Level 1)		Significant Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)
Assets
Cash Equivalents	$	9,576	$	9,576	$	—	$	—
Available-for-sale securities		146,985		63,331		83,654		—
Total Assets	$	156,561	$	72,907	$	83,654	$	—