Cash Equivalents and Marketable Securities

12 Months Ended

Dec. 31, 2015

Cash And Cash Equivalents [Abstract]

Cash Equivalents and Marketable Securities

5.    Cash Equivalents and Marketable Securities

The amortized cost, fair value and unrealized gain/(loss) for our financial assets by major security type as of December 31, 2015 and 2014 are as follows (in thousands):

	Amortized						Unrealized
December 31, 2015	Cost			Fair Value			Gain/(Loss)
Money market funds	$	6,806		$	6,806		$	—
Corporate debt securities		—			—			—
Total		6,806			6,806			—
Less amounts classified as cash equivalents		(6,806	)		(6,806	)		—
Total marketable securities	$	—		$	—		$	—

	Amortized						Unrealized
December 31, 2014	Cost			Fair Value			Gain/(Loss)
Money market funds	$	12,674		$	12,674		$	—
Corporate debt securities		24,620			24,617			(3	)
Total		37,294			37,291			(3	)
Less amounts classified as cash equivalents		(17,717	)		(17,717	)		—
Total marketable securities	$	19,577		$	19,574		$	(3	)