Annual report pursuant to Section 13 and 15(d)

Marketable Securities (Tables)

Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2016

Cash and Cash Equivalents [Abstract]

Marketable Available-for-Sale Securities

Marketable available-for-sale securities as of December 31, 2016 and 2015 consist of the following (in thousands):


		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
As of December 31, 2016:
Short-term investments:
Commercial paper		$	4,295			$	—			$	—			$	4,295
Corporate debt securities			2,205				—				(1	)			2,204

		$	6,500			$	—			$	(1	)		$	6,499


		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Estimated Fair Value
As of December 31, 2015:
Short-term investments:
Commercial paper		$	5,992			$	—			$	—			$	5,992
Government debt securities			1,509				—				(2	)			1,507
Corporate debt securities			21,671				—				(17	)			21,654
Asset-backed securities			4,623				—				(2	)			4,621

		$	33,795			$	—			$	(21	)		$	33,774