Short-term Investments (Tables)

9 Months Ended

Jun. 30, 2015

Investments Debt And Equity Securities [Abstract]

Short-term Investments

	As of June 30, 2015 (in thousands)
	Amortized		Unrealized		Unrealized			Estimated
	Cost		Gains		Losses			Fair Value
Short-term investments:
Corporate	$	16,170	$	-	$	(18	)	$	16,152
Government		3,459		-		(1	)		3,458
Total	$	19,629	$	-	$	(19	)	$	19,610

	As of September 30, 2014 (in thousands)
	Amortized		Unrealized		Unrealized			Estimated
	Cost		Gains		Losses			Fair Value
Short-term investments:
Corporate	$	14,262	$	-	$	(27	)	$	14,235
Government		5,638		-		(12	)		5,626
Total	$	19,900	$	-	$	(39	)	$	19,861