Liquidity	6 Months Ended
Jun. 30, 2016
Liquidity [Abstract]
Liquidity	2. Liquidity The Company has prepared these consolidated financial statements on a going concern basis, which assumes that the Company will realize its assets and satisfy its liabilities in the normal course of business. However, the Company has incurred net losses since its inception, has negative operating cash flows and has an accumulated deficit of $369.5 million as of June 30, 2016, $54.0 million of which has been accumulated since January of 2011, when the Company began its focus on bacteriophage development. As of June 30, 2016, the Company had cash and cash equivalents of $7.1 million. Management believes that the Company’s existing resources will be sufficient to fund the Company’s planned operations into the fourth quarter of 2016. These circumstances raise substantial doubt about the Company’s ability to continue as a going concern. The accompanying financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from the outcome of the uncertainty concerning the Company’s ability to continue as a going concern. The Company’s ability to raise additional funds will depend, in part, on the success of the Company’s preclinical studies and clinical trials and other product development activities, regulatory events, the Company’s ability to identify and enter into in-licensing or other strategic arrangements, and other events or conditions that may affect the value or prospects of the Company, as well as factors related to financial, economic, and market conditions, many of which are beyond the Company’s control. The Company cannot be certain that sufficient funds will be available to it when required or on acceptable terms, if at all. If adequate funds are not available on a timely basis or on acceptable terms, the Company may be required to defer, reduce or eliminate significant planned expenditures, restructure, curtail or eliminate some or all of its development programs or other operations, dispose of technology or assets, pursue an acquisition of the Company by a third party at a price that may result in a loss on investment for its stockholders, enter into arrangements that may require the Company to relinquish rights to certain of its product candidates technologies or potential markets, file for bankruptcy or cease operations altogether. Any of these events could have a material adverse effect on the Company’s business, financial condition and results of operations and result in a loss of investment by its stockholders.

2. Liquidity

The Company has prepared these consolidated financial statements on a going concern basis, which assumes that the Company will realize its assets and satisfy its liabilities in the normal course of business. However, the Company has incurred net losses since its inception, has negative operating cash flows and has an accumulated deficit of $369.5 million as of June 30, 2016, $54.0 million of which has been accumulated since January of 2011, when the Company began its focus on bacteriophage development. As of June 30, 2016, the Company had cash and cash equivalents of $7.1 million. Management believes that the Company’s existing resources will be sufficient to fund the Company’s planned operations into the fourth quarter of 2016. These circumstances raise substantial doubt about the Company’s ability to continue as a going concern. The accompanying financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classifications of liabilities that may result from the outcome of the uncertainty concerning the Company’s ability to continue as a going concern.

The Company’s ability to raise additional funds will depend, in part, on the success of the Company’s preclinical studies and clinical trials and other product development activities, regulatory events, the Company’s ability to identify and enter into in-licensing or other strategic arrangements, and other events or conditions that may affect the value or prospects of the Company, as well as factors related to financial, economic, and market conditions, many of which are beyond the Company’s control. The Company cannot be certain that sufficient funds will be available to it when required or on acceptable terms, if at all. If adequate funds are not available on a timely basis or on acceptable terms, the Company may be required to defer, reduce or eliminate significant planned expenditures, restructure, curtail or eliminate some or all of its development programs or other operations, dispose of technology or assets, pursue an acquisition of the Company by a third party at a price that may result in a loss on investment for its stockholders, enter into arrangements that may require the Company to relinquish rights to certain of its product candidates technologies or potential markets, file for bankruptcy or cease operations altogether. Any of these events could have a material adverse effect on the Company’s business, financial condition and results of operations and result in a loss of investment by its stockholders.