Subsequent Events	3 Months Ended
Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	8. Subsequent Events During the three month period ended September 30, 2016, the Company’s former CEO and CFO voluntarily agreed with the board of directors to defer 50% of their salary beginning September 1, 2016 until such time as the Company could reasonably pay such compensation upon approval by the board of directors. On April 23, 2018, the board of directors of the Company determined that the financial status of the Company had improved. Accordingly, the board of directors determined that it was reasonable for the Company to pay the remaining 50% of this deferred salary (the initial 50% of the deferred salary having been paid on October 30, 2017) and such payments were made to the CFO and former CEO on April 25, 2018. On May 21, 2018 the Company completed a definitive agreement (the “Settlement”) to settle potential liquidated damages resulting from delays in filing registration statements for shares of our common stock and shares of our common stock underlying warrants for certain private placements that the Company closed in 2013 and 2015. The Settlement was completed on terms substantially similar to the "Proposed Settlement” which we disclosed as a recent development in our Form 10-K for the year ended December 31, 2017 which we filed with the SEC on April 17, 2018. Consistent with our previous disclosure, the Settlement involves no cash payments or cash commitments by the Company and includes the issuance of new common stock warrants with an exercise price of $0.01 per share and exercisable within five years, in exchange for existing warrants currently held by the affected shareholders. The Settlement does not result in an increase in the total number of warrants held by these shareholders or the total number of warrants outstanding.

Subsequent Events

3 Months Ended

Mar. 31, 2018

8. Subsequent Events

During the three month period ended September 30, 2016, the Company’s former CEO and CFO voluntarily agreed with the board of directors to defer 50% of their salary beginning September 1, 2016 until such time as the Company could reasonably pay such compensation upon approval by the board of directors. On April 23, 2018, the board of directors of the Company determined that the financial status of the Company had improved. Accordingly, the board of directors determined that it was reasonable for the Company to pay the remaining 50% of this deferred salary (the initial 50% of the deferred salary having been paid on October 30, 2017) and such payments were made to the CFO and former CEO on April 25, 2018.

On May 21, 2018 the Company completed a definitive agreement (the “Settlement”) to settle potential liquidated damages resulting from delays in filing registration statements for shares of our common stock and shares of our common stock underlying warrants for certain private placements that the Company closed in 2013 and 2015. The Settlement was completed on terms substantially similar to the "Proposed Settlement” which we disclosed as a recent development in our Form 10-K for the year ended December 31, 2017 which we filed with the SEC on April 17, 2018. Consistent with our previous disclosure, the Settlement involves no cash payments or cash commitments by the Company and includes the issuance of new common stock warrants with an exercise price of $0.01 per share and exercisable within five years, in exchange for existing warrants currently held by the affected shareholders. The Settlement does not result in an increase in the total number of warrants held by these shareholders or the total number of warrants outstanding.