Note 8 - Cash, Cash Equivalents and Investments

6 Months Ended

Jun. 30, 2017

Notes to Financial Statements

Cash, Cash Equivalents, and Marketable Securities [Text Block]

8

. CASH, CASH EQUIVALENTS AND INVESTMENTS

The following is a summary of the Company

’s cash, cash equivalents and short-term and long-term investments (in thousands): 

	June 30,		December 31,
	2017		2016
Cash, cash equivalents and investments:
Cash	$	62,166	$	87,747
Money market funds		8,944		24,956
Certificates of deposit		7,378		-
Corporate debt securities		181,269		109,644
U.S. treasuries and government agency bonds		17,914		45,877
Auction-rate securities backed by student-loan notes		5,348		5,354
Total	$	283,019	$	273,578

	June 30,		December 31,
	2017		2016
Reported as:
Cash and cash equivalents	$	71,110	$	112,703
Short-term investments		206,561		155,521
Long-term investments		5,348		5,354
Total	$	283,019	$	273,578

The contractual maturities of the Company

’s short-term and long-term available-for-sale investments are as follows (in thousands):

	June 30,		December 31,
	2017		2016
Due in less than 1 year	$	75,434	$	47,568
Due in 1 - 5 years		131,127		107,953
Due in greater than 5 years		5,348		5,354
Total	$	211,909	$	160,875

The following tables summarize the unrealized gain and loss positions related to the Company

’s investments in marketable securities designated as available-for sale (in thousands): 

	June 30, 2017
	Amortized Cost		Unrealized Gains		Unrealized Losses			Total Fair Value		Fair Value of Investments in Unrealized Loss Position
Money market funds	$	8,944	$	-	$	-		$	8,944	$	-
Certificates of deposit		7,378		-		-			7,378		-
Corporate debt securities		181,700		96		(527	)		181,269		142,294
U.S. treasuries and government agency bonds		17,941		2		(29	)		17,914		16,424
Auction-rate securities backed by student-loan notes		5,570		-		(222	)		5,348		5,348
Total	$	221,533	$	98	$	(778	)	$	220,853	$	164,066

	December 31, 2016
	Amortized Cost		Unrealized Gains		Unrealized Losses			Total Fair Value		Fair Value of Investments in Unrealized Loss Position
Money market funds	$	24,956	$	-	$	-		$	24,956	$	-
Corporate debt securities		110,429		65		(850	)		109,644		91,938
U.S. treasuries and government agency bonds		45,899		-		(22	)		45,877		39,275
Auction-rate securities backed by student-loan notes		5,570		-		(216	)		5,354		5,354
Total	$	186,854	$	65	$	(1,088	)	$	185,831	$	136,567