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Subsequent Event	6 Months Ended
Subsequent Event	Jun. 30, 2017
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event In July 2017, the Company announced a $7.0 million private equity offering with an institutional investor. The Offering provides for the issuance of (i) 7,000 shares of Series F convertible preferred stock at a price of $1,000 per share, the repurchase and retirement of 4.2 million outstanding warrants at fair value in exchange for 3,261 Series F convertible preferred shares, and the adjustment of the conversion price for 21,053 outstanding shares of Series D and E preferred stock to current market value. The transaction will to be completed in two tranches of $3.5 million each. The first tranche closed and was funded on July 12, 2017 and the second tranche is planned to close in September following shareholder approval.