Cash Cash Equivalents and Investments (Tables)

6 Months Ended

Jun. 30, 2012

Cash, Cash Equivalents and Investments [Abstract]

Cash and investments

The Company’s cash and investments consist of the following:

	June 30, 2012		December 31, 2011
Cash	$	14,161	$	17,028
Cash equivalents		13,629		2,390
Short-term investments		37,174		42,210
Long-term investments		1,054		7,177
	$	66,018	$	68,805

Cash equivalents and investments measured at fair value

Cash equivalents and investments measured at fair value were as follows at June 30, 2012 and December 31, 2011:

	June 30, 2012								December 31, 2011
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	13,629	$	0	$	0	$	13,629	$	2,390	$	0	$	0	$	2,390
Investments:
US government agency bonds		0		16,019		0		16,019		0		18,256		0		18,256
Municipal bonds		0		14,611		0		14,611		0		23,616		0		23,616
Corporate debt securities		0		7,604		0		7,604		0		7,550		0		7,550
Total	$	13,629	$	38,234	$	0	$	51,863	$	2,390	$	49,422	$	0	$	51,812