Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Cash and Cash Equivalents Held in Investment Portfolio

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, 2015
Cash	$	2,302,734	$	—	$	—	$	2,302,734
Cash equivalents		27,626,406		—		—		27,626,406
Total cash and cash equivalents	$	29,929,140	$	—	$	—	$	29,929,140

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)		Fair Value
December 31, 2014
Cash	$	1,398,928	$	—	$	—	$	1,398,928
Cash equivalents		23,588,675		—		—		23,588,675
Total cash and cash equivalents	$	24,987,603	$	—	$	—	$	24,987,603