Investments and Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2014

Investments and Fair Value Measurements [Abstract]

Our cash, cash equivalents and investments are classified as follows (in thousands):

	June 30, 2014									December 31, 2013
			Gross		Gross							Gross		Gross
	Amortized		Unrealized		Unrealized			Fair		Amortized		Unrealized		Unrealized			Fair
	Cost		Gain		(Loss)			Value		Cost		Gain		(Loss)			Value
Classified as:
Cash	$	26,151	$	—	$	—		$	26,151	$	24,852	$	—	$	—		$	24,852
Cash equivalents:
Money market fund		156		—		—			156		109		—		—			109
Total cash and cash equivalents		26,307		—		—			26,307		24,961		—		—			24,961

Investments (available for sale):
Certificates of deposit		7,148		1		(1	)		7,148		6,320		2		(4	)		6,318
Corporate bonds		14,032		8		(1	)		14,039		14,276		8		(6	)		14,278
Corporate equity security		104		1,765		—			1,869		125		1.923		—			2,048
Total investments		21,284		1,774		(2	)		23,056		20,721		1,933		(10	)		22,644
Total cash, cash equivalents and investments	$	47,591	$	1,774	$	(2	)	$	49,363	$	45,682	$	1,933	$	(10	)	$	47,605
Contractual maturities on investments:
Due within 1 year	$	20,324						$	22,097	$	10,569						$	12,499
Due after 1 through 5 years		960							959		10,152							10,145
	$	21,284						$	23,056	$	20,721						$	22,644

Fair value and gross unrealized losses related to available-for-sale securities

The following table summarizes the fair value and gross unrealized losses related to available-for-sale securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of June 30, 2014 (in thousands):

	In Loss Position < 12 months					In Loss Position > 12 months					Total In Loss Position
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		(Losses)			Value		(Losses)			Value		(Losses)
Investments:
Certificates of deposit	$	719	$	(1	)	$	730	$	—		$	1,449	$	(1	)
Corporate bonds		—		—			1,702		(1	)		1,702		(1	)
Total in loss position	$	719	$	(1	)	$	2,432	$	(1	)	$	3,151	$	(2	)

	In Loss Position < 12 months					In Loss Position > 12 months					Total In Loss Position
			Gross					Gross					Gross
	Fair		Unrealized			Fair		Unrealized			Fair		Unrealized
	Value		(Loss)			Value		(Loss)			Value		(Loss)
Investments:
Certificates of deposit	$	3,425	$	(4	)	$	720	$	(0	)	$	4,145	$	(4	)
Corporate bonds		4,473		(5	)		3,711		(1	)		8,184		(6	)
Total in loss position	$	7,898	$	(9	)	$	4,431	$	(1	)	$	12,329	$	(10	)

Summary of financial assets and liabilities measured at fair value on a recurring basis

The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2013 (in thousands):

	Balance as of June 30, 2014		Quoted Prices in Active Markets of Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Assets:
Cash equivalents and investments:
Money market fund	$	156	$	156	$	—
Certificates of deposit		7,148		—		7,148
Corporate bonds		14,039		—		14,039
Corporate equity securities		1,869		1,869		—
Total	$	23,212	$	2,025	$	21,187
Liabilities	$	—	$	—	$	—

The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis in accordance with ASC 820 as of December 31, 2013 (in thousands):

	BalanWce as of December 31, 2013		Quoted Prices in Active Markets of Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)
Assets:
Cash equivalents and investments:
Money market fund	$	109	$	109	$	—
Certificates of deposit		6,318		—		6,318
Corporate bonds		14,278		—		14,278
Corporate equity securities		2,048		2,048		—
Total	$	22,753	$	2,157	$	20,596
Liabilities	$	—	$	—	$	—