Details of Certain Balance Sheet Accounts (Tables)

12 Months Ended

Sep. 30, 2012

Details of Certain Balance Sheet Accounts

Schedule of prepaid expenses and other current assets

	September 30,
	2011		2012
Restricted cash	$	100	$	200
Prepaid expenses		168		352
Other current assets		37		149
	$	305	$	701

Schedule of accrued expenses

	September 30,
	2011		2012
Accrued bonus	$	3,810	$	4,552
Accrued expenses		754		2,300
Lease payable		—		87
	$	4,564	$	6,939