Note 10. Stockholders’ Equity

Changes in stockholders’ equity

Changes in stockholders’ equity were as follows for the three months ended January 31, 2018:

	Total Stockholders’ Equity
Balance as of October 31, 2017	$	101,256
Share-based compensation		617
Warrant exercises		2,647
Taxes paid upon vesting of restricted stock awards, net of stock issued under benefit plans		(75	)
Preferred dividends – Series B		(800	)
Series C convertible preferred stock conversions		7,569
Other comprehensive income - foreign currency translation adjustments		33
Net loss		(4,183	)
Balance as of January 31, 2018	$	107,064

Authorized Common Stock

On December 14, 2017, the number of authorized shares of the Company’s common stock was increased from 125,000,000 to 225,000,000, by a vote of the holders of a majority of the outstanding shares of the Company’s common stock.

NASDAQ Marketplace Rule 5635(d)

On December 14, 2017, in accordance with NASDAQ Marketplace Rule 5635(d), the Company’s common stockholders approved the issuance of shares of the Company’s common stock exceeding 19.9% of the number of shares outstanding on September 5, 2017, upon the conversion and/or redemption of the Series C Convertible Preferred Stock issued in an underwritten offering in September 2017.

Public Offerings and Outstanding Warrants

On May 3, 2017, the Company completed an underwritten public offering of (i) 12,000,000 shares of its common stock, (ii) Series C warrants to purchase 12,000,000 shares of its common stock and (iii) Series D warrants to purchase 12,000,000 shares of its common stock. The Series C warrants have an exercise price of $1.60 per share and a term of five years. A total of 7,536 shares of common stock were issued during the first quarter of fiscal year 2018 upon exercise of Series C warrants and the Company received total proceeds of $0.01 million in connection with such exercises. The Series D warrants have an exercise price of $1.28 per share and a term of one year. A total of 2,058,866 shares of common stock were issued during the first quarter of fiscal year 2018 upon the exercise of Series D warrants and the Company received total proceeds of $2.6 million in connection with such exercises.

On July 12, 2016, the Company closed on a registered public offering of securities to a single institutional investor pursuant to a placement agent agreement with J.P. Morgan Securities LLC. In conjunction with the offering, the Company issued 7,680,000 Series A Warrants, all of which remained outstanding as of January 31, 2018, at an exercise price of $5.83 per share.

The following table summarizes outstanding warrant activity during the three months ended January 31, 2018:

	Series A Warrants		Series C Warrants			Series D Warrants
Balance as of October 31, 2017		7,680,000		11,580,900			2,584,174
Warrants exercised		—		(7,536	)		(2,058,866	)
Warrants expired		—		—			—
Balance as of January 31, 2018		7,680,000		11,573,364			525,308