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Financial Instruments | 9 Months Ended
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Sep. 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 |
September 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  | $ | 2,078,618 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,078,618 |
|  | 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 September 30, 2016, to maintain liquidity, our cash balances are in checking accounts. From time to time, we carry cash balances in excess of federally insured limits.

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