Marketable Securities
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Dec. 31, 2014
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Marketable Securities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Marketable Securities |
3. Marketable Securities
The following table shows the Company’s marketable securities’ adjusted cost, gross unrealized gains and losses, and fair value by significant investment category as of December 31, 2014 and 2013:
The Company typically invests in highly-rated securities, with the primary objective of minimizing the potential risk of principal loss. As of December 31, 2014, the Company had certificates of deposit with a fair value of $18,598,211 and unrealized losses of $26,789, commercial paper with a fair value of $998,180 and unrealized losses of $153, and corporate bonds with a fair value of $2,035,870 and unrealized losses of $6,827, all of which have been unrealized losses for less than 12 months. The Company does not have the intent to sell its marketable securities in an unrealized loss position. Based upon the Company’s securities’ fair value relative to the cost, high ratings, and volatility of fair value, the Company considers the declines in market value of its marketable securities to be temporary in nature and does not consider any of its investments other-than-temporarily impaired, and anticipates that it will recover the entire amortized cost basis.
The amortized cost and fair value of marketable securities at December 31, 2014 by contractual maturity are shown below. Expected maturities will differ from contractual maturities because the Company may redeem certain securities at par.
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