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Cash Equivalents And Investments (Tables) | 9 Months Ended
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Sep. 30, 2013
Cash Equivalents And Investments [Abstract] |
Schedule Of Cash And Available-For-Sale Securities |
September 30, 2013
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Cash Equivalents |  | Short-Term Investments |  | Long-Term Investments
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money Market funds | $ | 1,548,267 |  | $ | - |  | $ | - |  | $ | 1,548,267 |  | $ | 1,548,267 |  | $ |  |  | $ |
Subtotal |  | 1,548,267 |  |  | - |  |  | - |  |  | 1,548,267 |  |  | 1,548,267 |  |  | - |  |  | -
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | 2,101,926 |  |  | 785 |  |  | (2,213) |  |  | 2,100,498 |  |  | - |  |  | 1,861,509 |  |  | 238,989
Corporate Notes/Bonds |  | 8,966,889 |  |  | 25,977 |  |  | (2,935) |  |  | 8,989,931 |  |  | - |  |  | 6,252,178 |  |  | 2,737,753
Subtotal |  | 11,068,815 |  |  | 26,762 |  |  | (5,148) |  |  | 11,090,429 |  |  | - |  |  | 8,113,687 |  |  | 2,976,742
Total | $ | 12,617,082 |  | $ | 26,762 |  | $ | (5,148) |  | $ | 12,638,696 |  | $ | 1,548,267 |  | $ | 8,113,687 |  | $ | 2,976,742
December 31, 2012
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Cash Equivalents |  | Short-Term Investments |  | Long-Term Investments
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money Market funds | $ | 5,497,788 |  | $ | - |  | $ | - |  | $ | 5,497,788 |  | $ | 5,497,788 |  | $ |  |  | $ |
Subtotal |  | 5,497,788 |  |  | - |  |  | - |  |  | 5,497,788 |  |  | 5,497,788 |  |  | - |  |  | -
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | 8,157,749 |  |  | 3,727 |  |  | (1,945) |  |  | 8,159,531 |  |  | - |  |  | 7,258,768 |  |  | 900,763
Corporate Notes/Bonds |  | 8,241,327 |  |  | 35,364 |  |  | (914) |  |  | 8,275,777 |  |  | - |  |  | 3,800,143 |  |  | 4,475,634
Commercial Paper |  | 1,638,892 |  |  | 3,735 |  |  | - |  |  | 1,642,627 |  |  | - |  |  | 1,642,627 |  |  | -
Subtotal |  | 18,037,968 |  |  | 42,826 |  |  | (2,859) |  |  | 18,077,935 |  |  | - |  |  | 12,701,538 |  |  | 5,376,397
Total | $ | 23,535,756 |  | $ | 42,826 |  | $ | (2,859) |  | $ | 23,575,723 |  | $ | 5,497,788 |  | $ | 12,701,538 |  | $ | 5,376,397
Schedule Of Estimated Fair Value Of Available-For-Sale Securities |
|  | Amortized Cost |  | Estimated Market Value
Due within one year |  | $ | 8,094,583 |  | $ | 8,113,687
Due after one year through five years |  |  | 2,974,232 |  |  | 2,976,742
|  | $ | 11,068,815 |  | $ | 11,090,429

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