INVESTMENTS (Tables)

6 Months Ended

Jun. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Short-term and Long-term Investments

The Company's short-term and long-term investments as of June 30, 2016 are as follows (in thousands):

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Short-term securities:
U.S. agency securities	$	11,605	$	12	$	—		$	11,617
Corporate bonds	8,801		4		—			8,805
Commercial paper	22,465		—		—			22,465
Municipal securities	3,006		—		(1		)	3,005
U.S. government securities	15,080		19		—			15,099
Total	$	60,957	$	35	$	(1	)	$	60,991
Long-term securities:
U.S. agency securities	$	7,005	$	19	$	—		$	7,024
Corporate bonds	7,047		9		—			7,056
Municipal securities	1,501		1		—			1,502
U.S. government securities	4,003		17		—			4,020
Total	$	19,556	$	46	$	—		$	19,602

Investments Classified by Contractual Maturity Date

The contractual maturities of the Company's short-term and long-term investments as of June 30, 2016 are as follows (in thousands):

	Amortized Cost		Fair Value
Due in one year or less	$	60,957	$	60,991
Due in one to five years	19,556		19,602
Total	$	80,513	$	80,593