Series A Redeemable Convertible Preferred Stock (Tables)

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Embedded Derivative Instruments Rollforward

The fair value of these derivative instruments and the loss (gain) recorded on the change in the fair value of these derivative instruments, which was included in “Interest and other income (loss), net” within the consolidated statement of operations, for the three months ended June 30, 2016 and 2015, are as follows:

	Three Months Ended June 30,					Six Months Ended June 30,
	2016		2015			2016		2015
Beginning Balance	$	133,229	$	109,038		$	82,024	$	137,171
Total loss (gain) recognized in earnings	31,441		(8,477		)	82,646		(36,610		)
Ending Balance	$	164,670	$	100,561		$	164,670	$	100,561

Reconciliation of net (loss) income attributable to common stockholders

The following represents a reconciliation of net (loss) income attributable to common stockholders for the three months ended June 30, 2016 and 2015:

	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Net (loss) income	$	(3,534,882	)	$	(2,668,184	)	$	(7,831,494	)	$	2,594,195
Effects of Series A redeemable convertible preferred stock:
Less: Series A redeemable convertible preferred stock dividends	195,366			186,904			387,974			377,690
Less: Accretion to redemption value of Series A redeemable convertible preferred stock	170,981			143,557			334,650			280,974
Net (loss) income attributable to common stockholders	$	(3,901,229	)	$	(2,998,645	)	$	(8,554,118	)	$	1,935,531