Net Loss per Share	3 Months Ended
Mar. 31, 2020
Net Loss per Share
Net Loss per Share	7. Net Loss per Share Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding. Diluted net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding including the effect of common share equivalents. Diluted net loss per share assumes the issuance of potential dilutive common shares outstanding for the period and adjusts for any changes in income and the repurchase of common shares that would have occurred from the assumed issuance, unless such effect is anti-dilutive. Net loss attributable to common stockholders for the three months ended March 31, 2020 excludes net loss attributable to non-controlling interest of $0.1 million and includes the accretion of Series B preferred discount of $0.4 million on converted shares and Series A preferred stock accrued dividends of $0.1 million. Net loss attributable to common stockholders for the three months ended March 31, 2019 excludes net loss attributable to non-controlling interest of $0.1 million and includes the accretion of Series B preferred discount of $0.4 million on converted shares and $0.1 million of Series A accrued dividends. The number of shares of common stock underlying Series B Preferred shares convertible to common stock that were excluded from the computations of net loss per common share for the three months ended March 31, 2020 and 2019 were 5,708,696 and 7,065,217, respectively. The number of options and warrants for the purchase of common stock that were excluded from the computations of net loss per common share and for the three months ended March 31, 2020 were 2,502,012 and 18,714,999, respectively and for the three months ended March 31, 2019 were 893,367 and 18,915,851, respectively, because their effect is anti-dilutive.

7. Net Loss per Share

Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding. Diluted net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding including the effect of common share equivalents. Diluted net loss per share assumes the issuance of potential dilutive common shares outstanding for the period and adjusts for any changes in income and the repurchase of common shares that would have occurred from the assumed issuance, unless such effect is anti-dilutive. Net loss attributable to common stockholders for the three months ended March 31, 2020 excludes net loss attributable to non-controlling interest of $0.1 million and includes the accretion of Series B preferred discount of $0.4 million on converted shares and Series A preferred stock accrued dividends of $0.1 million. Net loss attributable to common stockholders for the three months ended March 31, 2019 excludes net loss attributable to non-controlling interest of $0.1 million and includes the accretion of Series B preferred discount of $0.4 million on converted shares and $0.1 million of Series A accrued dividends. The number of shares of common stock underlying Series B Preferred shares convertible to common stock that were excluded from the computations of net loss per common share for the three months ended March 31, 2020 and 2019 were 5,708,696 and 7,065,217, respectively. The number of options and warrants for the purchase of common stock that were excluded from the computations of net loss per common share and for the three months ended March 31, 2020 were 2,502,012 and 18,714,999, respectively and for the three months ended March 31, 2019 were 893,367 and 18,915,851, respectively, because their effect is anti-dilutive.