Marketable Securities (Tables)
|12 Months Ended|
Dec. 31, 2015
|Cash Equivalents and Marketable Securities [Abstract]|
|Schedule of cash equivalents and marketable securities||
Cash equivalents and marketable securities at December 31, 2015 and 2014 consisted of the following (in thousands):
A table of investments, shown as a text block.
Reference 1: http://www.xbrl.org/2003/role/presentationRef