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Cash Equivalents And Investments (Tables) | 3 Months Ended
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Mar. 31, 2014
Cash Equivalents And Investments [Abstract] |
Schedule Of Cash And Available-For-Sale Securities |
March 31, 2014
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Cash Equivalents |  | Short-Term Investments |  | Long-Term Investments
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money Market funds | $ | 6,618,007 |  | $ | - |  | $ | - |  | $ | 6,618,007 |  | $ | 6,618,007 |  | $ |  |  | $ |
Subtotal |  | 6,618,007 |  |  | - |  |  | - |  |  | 6,618,007 |  |  | 6,618,007 |  |  | - |  |  | -
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | 4,564,372 |  |  | 1,248 |  |  | (5,960) |  |  | 4,559,660 |  |  | 240,008 |  |  | 1,920,119 |  |  | 2,399,533
Corporate Notes/Bonds |  | 10,480,714 |  |  | 19,520 |  |  | (19,695) |  |  | 10,480,539 |  |  | - |  |  | 3,402,288 |  |  | 7,078,251
Subtotal |  | 15,045,086 |  |  | 20,768 |  |  | (25,655) |  |  | 15,040,199 |  |  | 240,008 |  |  | 5,322,407 |  |  | 9,477,784
Total | $ | 21,663,093 |  | $ | 20,768 |  | $ | (25,655) |  | $ | 21,658,206 |  | $ | 6,858,015 |  | $ | 5,322,407 |  | $ | 9,477,784
December 31, 2013
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Cash Equivalents |  | Short-Term Investments |  | Long-Term Investments
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money Market funds | $ | 5,751,965 |  | $ | - |  | $ | - |  | $ | 5,751,965 |  | $ | 5,751,965 |  | $ |  |  | $ |
Subtotal |  | 5,751,965 |  |  | - |  |  | - |  |  | 5,751,965 |  |  | 5,751,965 |  |  | - |  |  | -
Investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | 4,024,031 |  |  | 687 |  |  | (4,992) |  |  | 4,019,726 |  |  | 239,904 |  |  | 2,582,502 |  |  | 1,197,320
Corporate Notes/Bonds |  | 5,861,162 |  |  | 22,830 |  |  | (522) |  |  | 5,883,470 |  |  | - |  |  | 3,159,812 |  |  | 2,723,658
Subtotal |  | 9,885,193 |  |  | 23,517 |  |  | (5,514) |  |  | 9,903,196 |  |  | 239,904 |  |  | 5,742,314 |  |  | 3,920,978
Total | $ | 15,637,158 |  | $ | 23,517 |  | $ | (5,514) |  | $ | 15,655,161 |  | $ | 5,991,869 |  | $ | 5,742,314 |  | $ | 3,920,978
Schedule Of Estimated Fair Value Of Available-For-Sale Securities |
|  | Amortized Cost |  | Estimated Market Value
Due within one year |  | $ | 5,555,124 |  | $ | 5,562,415
Due after one year through five years |  |  | 9,489,962 |  |  | 9,477,784
|  | $ | 15,045,086 |  | $ | 15,040,199

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