Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2014

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):

	March 31, 2014		December 31, 2013
Cash	$	3,944	$	4,251
Money market funds		95,977		100,049
U.S. treasury security		10,000		―
Corporate debt securities		―		15,171
Cash and cash equivalents	$	109,921	$	119,471