Investments (Tables)

9 Months Ended

Sep. 30, 2012

Investments [Abstract]

Amortized cost and gross unrealized gains and losses on all securities

The following table presents the amortized cost and gross unrealized gains and losses on all securities at September 30, 2012:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
Short-term Investments:
U.S. Treasury securities and agency	$	3,516	$	—	$	1	$	3,515
FDIC Guaranteed certificates of deposit		3,808		—		4		3,804
Common stock		2,000		1,105		—		3,105
Corporate notes/bonds		11,317		—		6		11,311
Commercial Paper		14,839		—		4		14,835
Total short-term investments	$	35,480	$	1,105	$	15	$	36,570

The following table presents the amortized cost and gross unrealized gains and losses on all securities at December 31, 2011:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
Short-term Investments:
U.S. Treasury securities and agency	$	4,500	$	—	$	—	$	4,500
Corporate notes/bonds		37,085		—		37		37,048
Commercial Paper		8,992		—		12		8,980
Total short-term investments	$	50,577	$	—	$	49	$	50,528
Long-term Investments:
Peregrine Semiconductor, Corp. Series D-1 Preferred shares	$	2,000	$	—	$	—	$	2,000

Summarized financial assets measured at fair value on a recurring basis

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of September 30, 2012:

	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash Equivalents:
Money market funds	$	5,708	$	—	$	—	$	5,708
Investments:
Available-for-sales securities—current
U.S. Treasury securities and agency		—		3,515		—		3,515
FDIC Guaranteed certificates of deposit		—		3,804		—		3,804
Common stock		3,105		—		—		3,105
Corporate notes/bonds		—		11,311		—		11,311
Commercial paper		—		14,835		—		14,835
Total	$	8,813	$	33,465	$	—	$	42,278

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2011:

	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash Equivalents:
Money market funds	$	839	$	—	$	—	$	839
Investments:
Available-for-sales securities—current:
U.S. Treasury securities and agency		—		4,500		—		4,500
Corporate notes/bonds		—		37,048		—		37,048
Commercial paper		—		8,980		—		8,980
Total	$	839	$	50,528	$	—	$	51,367