CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables)

6 Months Ended

Jun. 30, 2017

Cash, Cash Equivalents, and Short-term Investments [Abstract]

Schedule of Cash, Money Market Funds and Short-Term Investments

Cash and cash equivalents and short-term investments consist of the following (in thousands):

	June 30,		December 31,
	2017		2016
Cash - Demand deposits	$	38,096	$	76,071
Cash equivalents - money market funds		76,189		30,646
Cash and cash equivalents total	$	114,285	$	106,717

	June 30,		December 31,
	2017		2016
Commercial paper	$	13,233	$	29,178
Corporate debt securities		-		26,578
US Government agency securities		1,499		3,997
Short-term investments total	$	14,732	$	59,753

Schedule of Unrealized Gains and Losses

Money market funds and short-term investments include the following securities with gross unrealized gains and losses (in thousands):

			Gross		Gross
			Unrealized		Unrealized
As of June 30, 2017	Cost		Gains		Losses		Fair Value
Money market funds	$	76,189	$	-	$	-	$	76,189
Commercial paper		13,232		1		-		13,233
US Government agency securities		1,500		-		(1)		1,499
Total	$	90,921	$	1	$	(1)	$	90,921

Unrealized gains and losses are included in Accumulated other comprehensive income.

			Gross		Gross
			Unrealized		Unrealized
As of December 31, 2016	Cost		Gains		Losses		Fair Value
Money market funds	$	30,646	$	-	$	-	$	30,646
Commercial paper		29,118		60		-		29,178
Corporate debt securities		26,606		1		(29)		26,578
US Government agency securities		4,000		-		(3)		3,997
Total	$	90,370	$	61	$	(32)	$	90,399

Schedule of Contractual Maturities

At June 30, 2017, the Company's short-term investments had the following remaining contractual maturities (in thousands):

	Amortized Cost		Estimated Fair Value
Less than one year	$	14,732	$	14,732