Loss Per Share

The calculation of basic and diluted loss per share was as follows:



	Three Months Ended January 31,
	2017			2016
Numerator
Net loss	$	(13,685	)	$	(11,779	)
Net loss attributable to noncontrolling interest	—			67
Preferred stock dividend	(800		)	(800		)
Net loss attributable to common shareholders	$	(14,485	)	$	(12,512	)
Denominator
Weighted average basic common shares	37,613,216			26,246,271
Effect of dilutive securities ⁽¹⁾	—			—
Weighted average diluted common shares	37,613,216			26,246,271
Basic loss per share	$	(0.39	)	$	(0.48	)
Diluted loss per share (1)	$	(0.39	)	$	(0.48	)


(1)	Due to the net loss to common shareholders in each of the periods presented above, diluted loss per share was computed without consideration to potentially dilutive instruments as their inclusion would have been antidilutive. As of January 31, 2017 and 2016, potentially dilutive securities excluded from the diluted loss per share calculation are as follows:



	January 31, 2017	January 31, 2016
July 2016 Offering - Series A Warrants	7,680,000	—
July 2014 Offering - NRG Warrants	166,666	166,666
Outstanding options to purchase common stock	245,820	253,815
Unvested Restricted Stock Awards	904,041	451,088
5% Series B Cumulative Convertible Preferred Stock	454,043	454,043
Series 1 Preferred Shares to satisfy conversion requirements	2,385,001	655,569
Total potentially dilutive securities	11,835,571	1,981,181

Refer to Note 12, Redeemable Preferred Stock, which is included in our Annual Report on Form 10-K for the year ended October 31, 2016 for information on the calculation of the common shares upon conversion.