Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Schedule of Fair Value Hierarchy of Financial Assets Carried at Fair Value and Measured on Recurring Basis

The fair value hierarchy of the Company’s assets and liabilities carried at fair value and measured on a recurring basis was as follows (in thousands):

			Fair value measurements at the reporting date using
	June 30, 2017		Quoted prices in active markets using identical  assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Cash equivalents: money market and other funds	$	10,799	$	—	$	10,799	$	—
Total assets at fair value	$	10,799	$	—	$	10,799	$	—
Acquisition-related contingent consideration liability	$	2,599	$	—	$	—	$	2,599
Total liabilities at fair value	$	2,599	$	—	$	—	$	2,599

			Fair value measurements at the reporting date using
	December 31, 2016		Quoted prices in active markets using identical  assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Cash equivalents:
U.S government securities	$	2,749	$	—	$	2,749	$	—
Money market and other funds	4,090		—		4,090		—
Commercial paper	1,999		—		1,999		—
Taxable municipal bonds	1,301		—		1,301		—
Total cash equivalents	10,139		—		10,139		—
Available-for-sale investments:
Debt securities:
U.S. government securities	2,000		—		2,000		—
Commercial paper	1,998		—		1,998		—
Time deposits	807		—		807		—
Taxable municipal bonds	2,296		—		2,296		—
Total debt securities	7,101		—		7,101		—
Total assets at fair value	$	17,240	$	—	$	17,240	$	—
Acquisition-related contingent consideration liability	$	3,421	$	—	$	—	$	3,421
Total liabilities at fair value	$	3,421	$	—	$	—	$	3,421

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

A reconciliation of Level 3 items measured at fair value on a recurring basis is as follows (in thousands):

Acquisition-related contingent consideration liability:
Balance as of December 31, 2016	$	3,421
Payment	(946		)
Foreign currency transaction loss	124
Balance as of June 30, 2017	$	2,599

Investments Classified as Available-for-Sale

The cost and fair value of available-for-sale investments were as follows (in thousands):

	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
Balance as of December 31, 2016	$	7,102	$	—	$	(1	)	$	7,101