Common Stock Warrant Liability	9 Months Ended
Sep. 30, 2018
Common Stock Warrant Liability [Abstract]
Common Stock Warrant Liability	Note 10: Common Stock Warrant Liability We account for common stock warrants pursuant to applicable accounting guidance contained in ASC 815 "Derivatives and Hedging - Contracts in Entity's Own Equity" and make a determination as to their treatment as either equity instruments or a warrant liability. During January 2018, in conjunction with a registered equity offering and a concurrent private placement that closed in February 2018, the Company issued warrants to purchase an aggregate of 4,004,324 common shares at an exercise price of $1.55. As of September 30, 2018 related warrants to purchase 3,974,324 shares of common stock remain outstanding. The warrants have alternative settlement provisions that, at the option of the holder, provide for physical settlement or if, at the time of settlement there is no effective registration statement, a cashless exercise, as defined in the warrant agreement. Based on analysis of the underlying warrant agreement, and applicable accounting guidance, the Company concluded that these registered warrants require the issuance of registered securities upon exercise and do not sufficiently preclude an implied right to net cash settlement. Accordingly, these warrants were classified on the Condensed Consolidated Balance Sheet as a current liability upon issuance and will be revalued at each subsequent balance sheet date. The fair value of the liability for common stock purchase warrants is estimated using the Black Scholes option pricing model based on the market value of the underlying common stock at the measurement date, the contractual term of the warrant, risk-free interest rates, expected dividends and expected volatility of the price of the underlying common stock. We determined that, based on the Black Sholes methodology, the liability for the January and February common stock warrants had a combined initial fair value of $2.9 million, and a fair value as of September 30, 2018 of $2.7 million. In addition, warrants the company issued that were classified as liabilities had a fair value of $0.8 million at December 31, 2017 and $0.6 million as of September 30, 2018. The combined changes in fair value as of September 30, 2018 was reflected as income from change in the fair market value of common stock warrant liability of $1.3 million and $0.4 million in the condensed consolidated statement of operations for the three and nine month periods ended September 30, 2018, respectively.

Note 10: Common Stock Warrant Liability

We account for common stock warrants pursuant to applicable accounting guidance contained in ASC 815 "Derivatives and Hedging - Contracts in Entity's Own Equity" and make a determination as to their treatment as either equity instruments or a warrant liability.

During January 2018, in conjunction with a registered equity offering and a concurrent private placement that closed in February 2018, the Company issued warrants to purchase an aggregate of 4,004,324 common shares at an exercise price of $1.55. As of September 30, 2018 related warrants to purchase 3,974,324 shares of common stock remain outstanding. The warrants have alternative settlement provisions that, at the option of the holder, provide for physical settlement or if, at the time of settlement there is no effective registration statement, a cashless exercise, as defined in the warrant agreement.

Based on analysis of the underlying warrant agreement, and applicable accounting guidance, the Company concluded that these registered warrants require the issuance of registered securities upon exercise and do not sufficiently preclude an implied right to net cash settlement. Accordingly, these warrants were classified on the Condensed Consolidated Balance Sheet as a current liability upon issuance and will be revalued at each subsequent balance sheet date.

The fair value of the liability for common stock purchase warrants is estimated using the Black Scholes option pricing model based on the market value of the underlying common stock at the measurement date, the contractual term of the warrant, risk-free interest rates, expected dividends and expected volatility of the price of the underlying common stock.

We determined that, based on the Black Sholes methodology, the liability for the January and February common stock warrants had a combined initial fair value of $2.9 million, and a fair value as of September 30, 2018 of $2.7 million. In addition, warrants the company issued that were classified as liabilities had a fair value of $0.8 million at December 31, 2017 and $0.6 million as of September 30, 2018. The combined changes in fair value as of September 30, 2018 was reflected as income from change in the fair market value of common stock warrant liability of $1.3 million and $0.4 million in the condensed consolidated statement of operations for the three and nine month periods ended September 30, 2018, respectively.