Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2016

Summary of Significant Accounting Policies [Abstract]

Schedule of Cash and Equivalents

Cash and cash equivalents consist of highly liquid investments with maturities of three months or less from the date of purchase. Cash and cash equivalents consist of the following at (in thousands):

	June 30, 2016		December 31, 2015
Cash	$	10,309	$	29,569
Money market funds		57,086		14,950
Government-backed security		22,000		20,000
Asset-backed securities		—		8,185
Corporate debt securities		—		20,404
Cash and cash equivalents	$	89,395	$	93,108