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Financial Instruments | 6 Months Ended
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Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract] |
Financial Instruments | Note 2. Financial Instruments The following table summarizes the fair value of our cash and cash equivalents held in our current investment portfolio:
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized (Losses) |  |  | Fair Value |
June 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 1,210,422 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,210,422 |
Cash equivalents |  |  | 1,238,339 |  |  |  | — |  |  |  | — |  |  |  | 1,238,339 |
Total cash and cash equivalents |  | $ | 2,448,761 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,448,761 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized (Losses) |  |  | Fair Value |
December 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 830,190 |  |  | $ | — |  |  | $ | — |  |  | $ | 830,190 |
Cash equivalents |  |  | 11,280,375 |  |  |  | — |  |  |  | — |  |  |  | 11,280,375 |
Restricted cash (money market accounts) |  |  | 2,422,500 |  |  |  | — |  |  |  | — |  |  |  | 2,422,500 |
Total cash and cash equivalents |  | $ | 14,533,065 |  |  | $ | — |  |  | $ | — |  |  | $ | 14,533,065 |
At June 30, 2016, our investments in money market accounts are through a money market fund that invests in high quality, short-term money market instruments which are classified as cash equivalents in the accompanying Condensed Consolidated Balance Sheet due to their short maturities. The investment seeks to provide the highest possible level of current income while still maintaining liquidity and preserving capital. From time to time, we carry cash balances in excess of federally insured limits.

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