Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2012

Fair Value of Financial Instruments [Abstract]

Fair value of cash equivalents

The fair value of our cash equivalents, which are primarily invested in money-market funds, was determined using the following inputs as of September 30, 2012 and December 31, 2011 (in thousands):

September 30, 2012
	Fair Value Measurements at Reporting Date Using
	Level 1		Level 2		Level 3		Total
Money-market funds	$	3,092	$	—	$	—	$	3,092
Total	$	3,092	$	—	$	—	$	3,092
Amounts included in:
Cash and cash equivalents	$	3,092	$	—	$	—	$	3,092
Short-term investments		—		—		—		—
Total	$	3,092	$	—	$	—	$	3,092

December 31, 2011
	Fair Value Measurements at Reporting Date Using
	Level 1		Level 2		Level 3		Total
Money-market funds	$	3,093	$	—	$	—	$	3,093
Total	$	3,093	$	—	$	—	$	3,093
Amounts included in:
Cash and cash equivalents	$	3,093	$	—	$	—	$	3,093
Short-term investments		—		—		—		—
Total	$	3,093	$	—	$	—	$	3,093