Investments (Tables)

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule of Held-To-Maturity Investments Estimated Fair Value of Investments

	Amortized  Cost		Gross  Unrealized  (Losses)			Estimated  Fair Value
March 31, 2016
Certificates of deposit, tri-party repurchase agreement, corporate notes and bonds	$	1,859,797	$	(404	)	$	1,859,393
December 31, 2015
Certificates of deposit, tri-party repurchase agreement, corporate notes and bonds	$	6,689,643	$	(4,948	)	$	6,684,695

Schedule of Maturities of Held-To-Maturity Investments

	Less than  1 Year		Total
Certificates of deposit, tri-party repurchase agreement, corporate notes and bonds	$	1,859,797	$	1,859,797