Cash, Cash Equivalents and Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2015

Cash Cash Equivalents And Short Term Investments [Abstract]

Summary of Cash, Cash Equivalents and Marketable Securities Available-for-Sale

The following is a summary of cash, cash equivalents and marketable securities available-for-sale as of March 31, 2015 and December 31, 2014 (in thousands):

	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
March 31, 2015
Cash and cash equivalents:
Cash	$	2,145	$	-	$	-		$	2,145
Money market funds		12,568		-		-			12,568
Total cash and cash equivalents		14,713		-		-			14,713
Marketable securities available-for-sale:
U.S. government agency securities		82,872		12		(3	)		82,881
Total marketable securities available-for-sale		82,872		12		(3	)		82,881
Total cash, cash equivalents and marketable securities	$	97,585	$	12	$	(3	)	$	97,594
December 31, 2014
Cash and cash equivalents:
Cash	$	2,522	$	-	$	-		$	2,522
Money market funds		46,989		-		-			46,989
Total cash and cash equivalents		49,511		-		-			49,511
Marketable securities available-for-sale:
U.S. government agency securities		73,140		11		(10	)		73,141
Total marketable securities available-for-sale		73,140		11		(10	)		73,141
Total cash, cash equivalents and marketable securities	$	122,651	$	11	$	(10	)	$	122,652

Maturities of Marketable Securities Available-for-Sale

The maturities of our marketable securities available-for-sale are as follows (in thousands):

	March 31, 2015
	Amortized Cost		Estimated Fair Value
Mature in one year or less	$	82,872	$	82,881
Mature after one year through two years		-		-
	$	82,872	$	82,881

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References+ Details