Marketable Securities

6 Months Ended

Jun. 30, 2018

Marketable Securities

Marketable Securities

4. Marketable Securities

The Company did not have any investments as of June 30, 2018.

The following table summarizes the Company’s investments as of December 31, 2017 (in thousands):

			Gross
	Amortized		Unrealized				Estimated
	Cost		Gains		Losses		Fair Value
Marketable securities available-for-sale:
U.S. Treasury obligations	$	1,500	$	—	$	(2)	$	1,498
Total available-for-sale securities	$	1,500	$	—	$	(2)	$	1,498