Marketable Securities

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

Marketable Securities

The Company’s marketable securities consist of available-for-sale securities, which are carried at fair value, with unrealized gains and losses reported as a separate component of stockholders’ equity. Unrealized gains and losses are computed on the specific identification method. Realized gains, realized losses and declines in value judged to be other-than-temporary, are included in interest and other income (loss), net. The cost of available-for-sale securities sold is based on the specific identification method and interest earned is included in interest and other income.

The cost and fair values of the Company’s available-for-sale marketable securities as of September 30, 2016, were as follows: 

	Aggregate Fair Value		Cost or Amortized Cost		Net Unrealized Gains
Government securities	$	500,040	$	499,969	$	71
Corporate debt securities	—		—		—
Marketable Securities	$	500,040	$	499,969	$	71

The cost and fair values of the Company’s available-for-sale marketable securities as of December 31, 2015, were as follows: 

	Aggregate Fair Value		Cost or Amortized Cost		Net Unrealized Losses
Government securities	$	6,560,303	$	6,562,792	$	(2,489	)
Corporate debt securities	859,739		860,656		(917		)
Marketable Securities	$	7,420,042	$	7,423,448	$	(3,406	)

The cost and fair values of available-for-sale securities by contractual maturity as of September 30, 2016, were as follows:

	Fair Value		Cost
Due within one year	$	500,040	$	499,969
Due after one year	—		—
	$	500,040	$	499,969