Subsequent Events	12 Months Ended
Dec. 31, 2019
Subsequent Events
Subsequent Events	Note 12 – Subsequent Events Stock Options On January 31, 2020, the Company granted ten-year stock options to purchase 25,000 shares of common stock to its employees under the 2018 Plan as amended. The shares vest over three years from the date of grant with one-third vesting on the one-year anniversary of the date of grant and the balance vesting monthly over the remaining 24 months. The stock options have an exercise price of $4.68 per share, which represents the Company’s closing stock price on the date of grant. Securities Purchase Agreement On March 24, 2020, the Company closed on a private placement of approximately $6.0 million of Units. Each Unit consisting of (i) one share of the Company’s common stock (ii) a one-year warrant to purchase 0.5 of a share of common stock (“Class A Warrant”), and (iii) a five-year warrant to purchase 0.75 of a share of common stock (“Class B Warrant”) (collectively, Class A Warrants and Class B Warrants, the “Warrants”). The Units were sold to the public at a price of $2.21425 per Unit and to certain directors and executive officers at a price of $2.42625 per Unit. The Company generated approximately $5.3 million of net proceeds in the offering after deducting placement agent fees and offering expenses. In the offering the Company issued an aggregate of 2,675,293 shares of common stock, Class A Warrants to purchase up to 1,337,659 shares of common stock, and Class B Warrants to purchase up to 2,006,495 shares of common stock. The exercise price of the Class A Warrants issued to the public is $2.058 per share and the exercise price of the Class A Warrants issued to the directors and officers is $2.27 per share. The exercise price of the Class B Warrants issued to the public is $2.4696 per share and the exercise price of the Class B Warrants issued to the directors and officers is $2.724 per share. In connection with the offering, on March 23, 2020, the Company also entered into a Registration Rights Agreement with the investors. Pursuant to the Registration Rights Agreement, the Company must file with the SEC, no later than 30 days following the date on which the Company files its Form 10-K for the year ended December 31, 2019 with the SEC, a registration statement on Form S-3 covering the shares of common Stock issued in the offering and the shares of common Stock underlying the Warrants.

Note 12 – Subsequent Events

Stock Options

On January 31, 2020, the Company granted ten-year stock options to purchase 25,000 shares of common stock to its employees under the 2018 Plan as amended. The shares vest over three years from the date of grant with one-third vesting on the one-year anniversary of the date of grant and the balance vesting monthly over the remaining 24 months. The stock options have an exercise price of $4.68 per share, which represents the Company’s closing stock price on the date of grant.

Securities Purchase Agreement

On March 24, 2020, the Company closed on a private placement of approximately $6.0 million of Units. Each Unit consisting of (i) one share of the Company’s common stock (ii) a one-year warrant to purchase 0.5 of a share of common stock (“Class A Warrant”), and (iii) a five-year warrant to purchase 0.75 of a share of common stock (“Class B Warrant”) (collectively, Class A Warrants and Class B Warrants, the “Warrants”). The Units were sold to the public at a price of $2.21425 per Unit and to certain directors and executive officers at a price of $2.42625 per Unit. The Company generated approximately $5.3 million of net proceeds in the offering after deducting placement agent fees and offering expenses. In the offering the Company issued an aggregate of 2,675,293 shares of common stock, Class A Warrants to purchase up to 1,337,659 shares of common stock, and Class B Warrants to purchase up to 2,006,495 shares of common stock. The exercise price of the Class A Warrants issued to the public is $2.058 per share and the exercise price of the Class A Warrants issued to the directors and officers is $2.27 per share. The exercise price of the Class B Warrants issued to the public is $2.4696 per share and the exercise price of the Class B Warrants issued to the directors and officers is $2.724 per share.

In connection with the offering, on March 23, 2020, the Company also entered into a Registration Rights Agreement with the investors. Pursuant to the Registration Rights Agreement, the Company must file with the SEC, no later than 30 days following the date on which the Company files its Form 10-K for the year ended December 31, 2019 with the SEC, a registration statement on Form S-3 covering the shares of common Stock issued in the offering and the shares of common Stock underlying the Warrants.