Equity

6 Months Ended

Jun. 30, 2022

Equity [Abstract]

Equity

Note 6 — Equity

Common Stock

We issued no shares for options exercised during the three and six months ended June 30, 2022 or 2021, respectively. We issued 191,795 and 174,285 shares as a result of vesting RSUs during the three months ended June 30, 2022 and 2021, respectively. No shares were issued during the first three months of 2022 or 2021 as a result of vesting RSUs.

Warrants

In 2020, we issued warrants for the purchase of 25,000 shares of common stock at an exercise price of $5.75 per share, exercisable on the date of grant expiring in April 2025. The weighted average fair value at the grant date was $4.16 per warrant. The fair value at the grant date was estimated utilizing the Black-Scholes valuation model with the following weighted average assumptions (i) dividend yield on our common stock of 0 percent (ii) expected stock price volatility of 97 percent (iii) a risk-free interest rate of 0.27 percent and (iv) and expected option term of 5 years.

Warrants Issued		Exercise Price		Outstanding and Exercisable December 31, 2021		Issued		Exercised		Terminated / Cancelled		Outstanding and Exercisable June 30, 2022		Expiration Date
	25,000	$	5.75		25,000		—		—		—		25,000	April 30, 2025