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Marketable Securities | 12 Months Ended
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Dec. 31, 2013
Investments Debt And Equity Securities [Abstract] |
Marketable Securities | NOTE 3 –MARKETABLE SECURITIES The table below summarizes the Company’s cash equivalents and available-for-sale securities (in thousands):
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized (Losses) |  |  | Estimated Fair Value |
December 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 6,934 |  |  | $ | — |  |  | $ | — |  |  | $ | 6,934 |
Total |  |  | 6,934 |  |  |  | — |  |  |  | — |  |  |  | 6,934 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored entity debt securities |  |  | 121,278 |  |  |  | 12 |  |  |  | — |  |  |  | 121,290 |
Total cash equivalents and available-for-sale securities |  | $ | 128,212 |  |  | $ | 12 |  |  | $ | — |  |  | $ | 128,224 |
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored entity debt securities |  | $ | 2,997 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,997 |
Money market funds |  |  | 15,839 |  |  |  | — |  |  |  | — |  |  |  | 15,839 |
Total |  |  | 18,836 |  |  |  | — |  |  |  | — |  |  |  | 18,836 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government sponsored entity debt securities |  |  | 54,426 |  |  |  | 26 |  |  |  | — |  |  |  | 54,452 |
Total cash equivalents and available-for-sale securities |  | $ | 73,262 |  |  | $ | 26 |  |  | $ | — |  |  | $ | 73,288 |
As of December 31, 2013, all of the Company’s investments had maturity dates within two years and there were no material unrealized losses during 2013. Approximately 70% of the Company’s available-for-sale securities mature within the next twelve months of the date of the balance sheet date and approximately 30% of the Company’s available-for-sale securities have maturities between twelve and twenty-four months from the date of the balance sheet date. The Company had no material realized losses or other-than-temporary impairments of available-for-sale securities for the years ended December 31, 2013, 2012 and 2011.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Debt Security -URI http://asc.fasb.org/extlink&oid=6509901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27405-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -Glossary Equity Security -URI http://asc.fasb.org/extlink&oid=6511694 + Details
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