Net Loss Per Share (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2017

Dec. 31, 2016

Common Shares Excluded from Net Income (Loss)

The following table sets forth the potentially dilutive common shares excluded from the calculation of net loss per common share because their inclusion would be anti-dilutive (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Warrants to purchase common stock		19,557		1,076		19,557		1,871
Options to purchase common stock		505		322		505		515

Total		20,062		1,398		20,062		2,386

The following table sets forth the potentially dilutive common shares excluded from the calculation of net loss per common share because their inclusion would be anti-dilutive (in thousands):


	December 31,
	2016		2015
Warrants to purchase common stock		2,570		1,115
Options to purchase common stock		561		663

Total		3,131		1,778

Schedule of Earnings Per Share, Basic and Diluted

Basic and diluted earnings per share are calculated as follows:


	Three Months Ended June 30,					Six Months Ended June 30,
	2017			2016		2017			2016
Numerator:
Net income (loss) (in thousands)	$	(8,404	)	$	5,389	$	(20,122	)	$	(11,104	)

Denominator:
Weighted average number of common shares outstanding		37,421,273			9,101,730		31,944,243			9,035,173
Effect of dilutive securities
Stock options		—			33,864		—			—
Warrants		—			138,273		—			—

Dilutive potential common shares		—			172,137		—			—

Shares used in calculating diluted earnings per share		37,421,273			9,273,867		31,944,243			9,035,173

Basic net income (loss) per share	$	(0.22	)	$	0.59	$	(0.63	)	$	(0.30	)
Diluted net income (loss) per share	$	(0.22	)	$	0.58	$	(0.63	)	$	(0.30	)