The table below presents the computation of basic and diluted net loss per share of common stock:

	Three months ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Basic Numerator:
Loss from attributable to shares of common stock	$	(10,807)	$	(8,509)	$	(14,762)	$	(15,485)
Net loss attributable to shares of common stock	$	(10,807)	$	(8,509)	$	(14,762)	$	(15,485)
Basic Denominator:
Weighted average number of shares of common stock outstanding during the period		14,993,686		9,469,162		14,576,183		9,405,181
Basic common stock shares outstanding		14,993,686		9,469,162		14,576,183		9,405,181
Basic net loss per common stock share	$	(0.72)	$	(0.90 )	$	(1.01)	$	(1.65)

Diluted Numerator:
Net loss attributable to shares of common stock	$	(10,807)	$	(8,509)		(14,762)	$	(15,485)
Increase in net loss attributable to derivative liabilities and interest expense		—		—		—		—
Diluted net loss attributable to shares of common stock	$	(10,807)	$	(8,509)		(14,762)	$	(15,485)

Diluted Denominator:
Basic common stock shares outstanding		14,993,686		9,469,162		14,576,183		9,405,181
Weighted average number of derivative liabilities in the money		—		—		—		—
Diluted common stock shares outstanding		14,993,686		9,469,162		14,576,183		9,405,181
Diluted net loss per common stock share	$	(0.72)	$	(0.90 )		(1.01)	$	(1.65)

Net loss per share data presented excludes from the calculation of diluted net loss the following potentially dilutive securities, as they had an anti-dilutive impact:
Vested and unvested options outstanding to purchase an equal number of shares of common stock of the Company		1,492,434		888,047		1,492,434		888,047
Unvested RSUs to issue an equal number of shares of common stock of the Company		7,808		60,990		7,808		60,990
Warrants to purchase an equal number of shares of common stock of the Company		1,006,679		956,679		1,006,679		956,679
Conversion feature of senior secured notes		—		1,250,000		159,462		1,250,000
Total number of potentially dilutive instruments, excluded from the calculation of net loss per share		2,506,921		3,155,716		2,666,383		3,155,716