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STOCKHOLDERS' EQUITY | 12 Months Ended
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Dec. 31, 2017
Equity [Abstract] |
STOCKHOLDERS' EQUITY | STOCKHOLDERS' EQUITY Common and Preferred Stock As of December 31, 2017, the Company is authorized to issue 200 million shares of common stock and has 10 million shares of authorized but unissued undesignated preferred stock. Without any further vote or action by the Company's stockholders, the Board of Directors has the authority to determine the powers, preferences, rights, qualifications, limitations or restrictions granted to or imposed upon any wholly unissued shares of undesignated preferred stock. On April 26, 2017, the Company filed an Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware to increase the number of authorized shares of common stock from 100 million to 200 million. The proposal for the amendment was approved by the Company’s stockholders at its 2017 Annual Meeting of Stockholders held on April 26, 2017. Issuance of Common Stock On December 6, 2016, the Company filed a shelf registration statement on Form S-3 as amended on March, 2017, under which the Company may, from time to time, sell securities in one or more offerings up to a total dollar amount of $40.0 million. The Company's shelf registration statement was declared effective on March 16, 2017. Under the shelf registration, in March 2017, the Company issued an aggregate of 11.3 million shares of common stock, $0.001 par value, in an underwritten public offering at a price of $1.50 per share. The Company received net proceeds from this offering of approximately $15.2 million, net of underwriter's commission and other offering expenses. In March 2016, the Company issued an aggregate of 10.0 million shares of common stock, $0.001 par value, in an underwritten public offering at a price of $1.00 per share under the shelf registration that was effective on August 30, 2013 and expired on August 30, 2016. The Company received net proceeds from the offering of approximately $8.8 million, net of underwriter's commission and other offering expenses. The Company previously issued 2.3 million warrants exercisable for the Company's common stock with a strike price of $2.98 in conjunction with a June 2012 financing. These warrants expired in June 2017.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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