Note 11 - Warrants
12 Months Ended
Dec. 31, 2021
Notes to Financial Statements  
Warrants Disclosure [Text Block]

11. Warrants

 

November 2021 Financing Warrants

 

On November 15, 2021, the Company entered into a securities purchase agreement with certain investors pursuant to which the Company, in a registered direct offering, sold (i) an aggregate of 17,500,000 shares of the Company's common stock, and (ii) warrants to purchase up to an aggregate of 17,500,000 shares of common stock, for an aggregate purchase price of $14.0 million (see Note 13 “Stockholders’ Equity”). The November 2021 Financing Warrants have an exercise price of $1.00 per share and become exercisable, if the holder’s post-exercise beneficial ownership is less than or equal to 9.99%, 6 months after their issuance date and have a five-year term ( November 15, 2026). All common stock issuable under the issued warrants, were added to the Company’s effective registration statement on November 15, 2021.

 

The November 2021 Financing warrants were valued at approximately $8.6 million using the Black-Scholes option pricing model as follows: exercise price of $1.00 per share, stock price of $0.7461 per share, expected life of five years, volatility of 91.77%, and a risk-free rate of 1.26%. The common stock and warrants were issued in a unit structure; therefore, in accordance with ASC Topic 815, the aggregate gross proceeds of $14.0 million were allocated to the two securities using the relative fair value method, resulting in the common stock and warrants being allocated values of $8.4 million and $5.6 million, respectively, and recorded to stockholders' equity.

 

Loan Agreement Warrants

 

In connection with the Loan Agreement, on May 30, 2019, the Company issued warrants to the Lender and its affiliates, which are exercisable for an aggregate of 176,679 shares of the Company’s common stock with a per share exercise price of $2.83, or the Loan Agreement Warrants. The Loan Agreement Warrants may be exercised on a cashless basis. The Loan Agreement Warrants are exercisable for a term beginning on the date of issuance and ending on the earlier to occur of ten years from the date of issuance or the consummation of certain acquisitions of the Company as set forth in the Loan Agreement Warrants. The number of shares for which the Loan Agreement Warrants are exercisable and the associated exercise price are subject to certain proportional adjustments as set forth in the Loan Agreement Warrants.

 

The Company estimated the fair value of these Loan Agreement Warrants as of the issuance date to be $0.4 million, which was used in estimating the fair value of the debt instrument and was recorded as equity. The fair value of the Loan Agreement Warrants was calculated using the Black-Scholes option-valuation model, and was based on the strike price of $2.83, the stock price at issuance of $2.66, the ten-year contractual term of the warrants, a risk-free interest rate of 2.22%, expected volatility of 80.22% and 0% expected dividend yield.

 

As of December 31, 2021, Loan Agreement Warrants to purchase 176,679 shares of common stock issued to the Lender and its affiliates had not been exercised and were still outstanding. These warrants expire in May 2029.