Quarterly report pursuant to Section 13 or 15(d)

13. Subsequent Events

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13. Subsequent Events
3 Months Ended
Mar. 31, 2017
Subsequent Events [Abstract]  
Subsequent Events

Between April 5, 2017 and April 13, 2017, an additional $0.8 million of Exchange Debentures were converted into 722,126 shares of common stock. Between April 21, 2017 and April 26, 2017, 440 shares of Series H Preferred Stock were converted into 500,000 shares of common stock in accordance with the terms of the Series H Preferred Stock.