Investments and Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2015

Investments and Fair Value Measurements [Abstract]

As of June 30, 2015 and December 31, 2014, our cash, cash equivalents and investments are classified as follows (in thousands):

	June 30, 2015									December 31, 2014
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized (Loss)			Fair Value		Amortized Cost		Gross Unrealized Gain		Gross Unrealized (Loss)			Fair Value
Classified as:
Cash	$	17,337	$	—	$	—		$	17,337	$	22,337	$	—	$	—		$	22,337
Cash equivalents:
Certificates of deposit ¹		11,303		—		—			11,303		6,454		—		—			6,454
Money market fund		—		—		—			—		23		—		—			23
Total cash and cash equivalents		28,640		—		—			28,640		28,814		—		—			28,814

Investments (available for sale):
Certificates of deposit ²		8,105		1		(16	)		8,090		10,195		1		(13	)		10,183
Corporate bonds		9,006		—		(40	)		8,966		9,214		1		(29	)		9,186
Corporate equity securities		200		375		—			575		44		710		—			754
Total investments		17,311		376		(56	)		17,631		19,453		712		(42	)		20,123
Total cash, cash equivalents and investments	$	45,951	$	376	$	(56	)	$	46,271	$	48,267	$	712	$	(42	)	$	48,937
Contractual maturities on investments:
Due within 1 year	$	3,560						$	3,932	$	11,631						$	12,340
Due after 1 through 5 years		13,751							13,699		7,822							7,783
	$	17,311							17,631	$	19,453						$	20,123

1. Certificate of deposit with original maturities of less than 90 days.

2. Certificate of deposit with original maturities of more than 90 days

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, 2015 (in thousands):

As of June 30, 2015	In Loss Position < 12 months					In Loss Position > 12 months					Total In Loss Position
	Fair Value		Gross Unrealized (Losses)			Fair Value		Gross Unrealized (Losses)			Fair Value		Gross Unrealized (Losses)
Investments:
Certificates of deposit	$	6,410	$	(15	)	$	1,199	$	(1	)	$	7,609	$	(16	)
Corporate bonds		8,966		(40	)		—		—			8,966		(40	)
Total in loss position	$	15,376	$	(55	)	$	1,199	$	(1	)	$	16,575	$	(56	)

As of December 31, 2014	In Loss Position < 12 months					In Loss Position > 12 months					Total In Loss Position
	Fair Value		Gross Unrealized (Loss)			Fair Value		Gross Unrealized (Loss)			Fair Value		Gross Unrealized (Loss)
Investments:
Certificates of deposit	$	4,492	$	(13	)	$	—	$	—		$	4,492	$	(13	)
Corporate bonds		3,770		(27	)		4,309		(2	)		8,079		(29	)
Total in loss position	$	8,262	$	(40	)	$	4,309	$	(2	)	$	12,571	$	(42	)

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 in accordance with ASC 820 as of June 30, 2015 (in thousands):

	Balance as of June 30, 2015		Quoted Prices in Active Markets of Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents and investments:
Certificates of deposit	$	19,393	$	—	$	19,393	$	—
Corporate bonds		8,966		—		8,966		—
Corporate equity securities		575		575		—		—
Total	$	28,934	$	575	$	28,359	$	—
Liabilities:
Foreign currency hedge obligations	$	29	$	—	$	—	$	29

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, 2014 (in thousands):

	Balance as of December 31, 2014		Quoted Prices in Active Markets of Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents and investments:
Money market fund	$	23	$	23	$	—	$	—
Certificates of deposit		10,183		—		10,183		—
Corporate bonds		9,186		—		9,186		—
Corporate equity securities		754		754		—		—
Total	$	20,146	$	777	$	19,369	$	—
Liabilities	$	—	$	—	$	—	$	—