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Shelf Registration Statement	3 Months Ended
Shelf Registration Statement	Mar. 31, 2017
Shelf Registration Statement [Abstract]
Shelf Registration Statement	Shelf Registration Statement On June 3, 2014, the Company filed a shelf registration statement on Form S-3 with the U.S. Securities and Exchange Commission (“SEC”) which allows the Company to sell up to an aggregate of $125 million of any combination of its common stock, warrants, debt securities or units. On June 30, 2014, the registration statement was declared effective by the SEC, which allows the Company to access the capital markets for the three year period following this effective date. As of March 31, 2017, approximately $115 million is available under this registration statement.