Note 10 - Stockholders' Equity

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

10.  STOCKHOLDERS’ EQUITY

The Company’s authorized capital consists of 150,000,000 shares of Common Stock, par value $0.0001 per share, and 5,000,000 shares of preferred stock, par value $0.0001 per share (“Preferred Stock”).

Summary of Stock Purchase Warrants

The following table summarizes warrant activity during the nine months ended September 30, 2021:

	Number			Average Price Per Share
Shares purchasable under outstanding warrants at December 31, 2020		3,206,910		$	6.36
Stock purchase warrants issued		-			-
Stock purchase warrants exercised		(1,815,012	)	$	6.64
Stock purchase warrants expired		(231	)	$	7.58
Shares purchasable under outstanding warrants at September 30, 2021		1,391,667		$	6.00

The Company has outstanding Common Stock purchase warrants as of September 30, 2021 as follows:

	Number of		Exercise Price
Description	Common Shares		Per Share		Expiration Date
Purchase Warrants		1,391,667	$	6.00	June 1, 2022