FAIR VALUE MEASUREMENTS

6 Months Ended

Mar. 31, 2013

FAIR VALUE MEASUREMENTS [Abstract]

FAIR VALUE MEASUREMENTS

NOTE 4—FAIR VALUE MEASUREMENTS

Fair value is defined under US GAAP as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy is based on three levels of inputs that may be used to measure fair value as follows:

Level 1— Quoted prices in active markets for identical assets or liabilities.

Level 2— Inputs other than quoted prices in active markets, that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3— Unobservable inputs, for which there is little or no market data for the assets or liabilities.

The following table presents the fair value hierarchy for our financial assets, comprised of money market investments, measured at fair value on a recurring basis as of March 31, 2013 and September 30, 2012:

Fair value measurements as of March 31, 2013

(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market	$	8,260		—		—	$	8,260

Fair value measurements as of September 30, 2012

(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market		8,256		—		—		8,256

The carrying amounts of certain financial instruments, including cash equivalents, restricted cash, accounts receivable, accounts payable and accrued liabilities, approximate fair value due to the short term nature of the assets.