Net Loss per Share	6 Months Ended
Jun. 30, 2022
Earnings Per Share [Abstract]
Net Loss per Share	Note 9. Net Loss per Share Basic net loss per share is calculated by dividing the net loss by the weighted average number of common shares outstanding during the reporting period. A net loss cannot be diluted, so when the Company is in a net loss position, basic and diluted loss per common share are the same. If in the future the Company achieves profitability, the denominator of a diluted earnings per common share calculation will include both the weighted average number of shares outstanding and the number of common stock equivalents, if the inclusion of such common stock equivalents would be dilutive. Dilutive common stock equivalents include warrants, stock options, non-vested restricted stock units and employee stock purchase plan rights. The Company’s outstanding warrants to purchase common stock have participation rights to any dividends that may be declared in the future and are therefore considered to be participating securities. Participating securities have the effect of diluting both basic and diluted earnings per share during periods of income. During periods of loss, no loss is allocated to the participating securities since the holders have no contractual obligation to share in the losses of the Company. Anti-dilutive share equivalents excluded from the computation of diluted net loss per share at June 30, 2022 consisted of warrants of 56,329,950, stock options of 101,577, restricted stock awards of 79,988 and restricted stock units of 6,818. Anti-dilutive share equivalents excluded from the computation of diluted net loss per share at June 30, 2021 consisted of warrants of 2,345,033, stock options of 132,477, restricted stock awards of 355,598, restricted stock units of 54,924 and Employee Stock Purchase Plan shares of 10,557.

Net Loss per Share

6 Months Ended

Jun. 30, 2022

Note 9. Net Loss per Share

Basic net loss per share is calculated by dividing the net loss by the weighted average number of common shares outstanding during the reporting period. A net loss cannot be diluted, so when the Company is in a net loss position, basic and diluted loss per common share are the same. If in the future the Company achieves profitability, the denominator of a diluted earnings per common share calculation will include both the weighted average number of shares outstanding and the number of common stock equivalents, if the inclusion of such common stock equivalents would be dilutive. Dilutive common stock equivalents include warrants, stock options, non-vested restricted stock units and employee stock purchase plan rights.

The Company’s outstanding warrants to purchase common stock have participation rights to any dividends that may be declared in the future and are therefore considered to be participating securities. Participating securities have the effect of diluting both basic and diluted earnings per share during periods of income. During periods of loss, no loss is allocated to the participating securities since the holders have no contractual obligation to share in the losses of the Company.

Anti-dilutive share equivalents excluded from the computation of diluted net loss per share at June 30, 2022 consisted of warrants of 56,329,950, stock options of 101,577, restricted stock awards of 79,988 and restricted stock units of 6,818.

Anti-dilutive share equivalents excluded from the computation of diluted net loss per share at June 30, 2021 consisted of warrants of 2,345,033, stock options of 132,477, restricted stock awards of 355,598, restricted stock units of 54,924 and Employee Stock Purchase Plan shares of 10,557.