Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

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):

	2015		2014
Cash	$	29,569	$	4,481
Money market funds		14,950		20,354
Government-backed security		20,000		7,500
Asset-backed securities		8,185		—
Corporate debt securities		20,404		—
Cash and cash equivalents	$	93,108	$	32,335