Stock Warrants	12 Months Ended
Dec. 31, 2018
Stock Warrants [Abstract]
Stock Warrants	Note 6 – Stock Warrants In connection with certain of our preferred stock sales and debt issuances, we issued warrants to the placement agent and lender for preferred stock. The warrants were recorded as liabilities with changes in fair value being recorded in the statement of operations and are calculated utilizing the Black-Scholes option pricing model. At the closing of the IPO date on October 6, 2015, these warrants become exercisable for shares of our common stock. These warrants were exercisable for 600,184 shares of common stock at exercise prices ranging from $5.79 to $12.10 and expire at various dates through 2020. During 2018, 2017 and 2016, 296,057, 166,762 and 58,769 warrants were exercised resulting in the issuance of 175,999, 94,200 and 44,032 shares of common stock, respectively. As of December 31, 2018, 78,596 warrants were exercisable.

Note 6 – Stock Warrants

In connection with certain of our preferred stock sales and debt issuances, we issued warrants to the placement agent and lender for preferred stock. The warrants were recorded as liabilities with changes in fair value being recorded in the statement of operations and are calculated utilizing the Black-Scholes option pricing model. At the closing of the IPO date on October 6, 2015, these warrants become exercisable for shares of our common stock. These warrants were exercisable for 600,184 shares of common stock at exercise prices ranging from $5.79 to $12.10 and expire at various dates through 2020. During 2018, 2017 and 2016, 296,057, 166,762 and 58,769 warrants were exercised resulting in the issuance of 175,999, 94,200 and 44,032 shares of common stock, respectively. As of December 31, 2018, 78,596 warrants were exercisable.