Loss per Share (Tables)

3 Months Ended

Mar. 31, 2022

Loss per Share [Abstract]

Weighted Average Shares Outstanding

Accordingly, warrants issued with a $0.01 per share exercise price, are included in weighted average shares outstanding as follows (shares in thousands):

	Three Months Ended
	March 31, 2022		March 31, 2021
Weighted average shares outstanding
Common shares		498,723		481,620
Common shares issuable assuming excercise of nominally priced warrants		26,691		36,871
Weighted average shares outstanding		525,414		518,491

Anti-dilutive Equity Securities

Anti-dilutive equity securities consist of the following at March 31, 2022 and 2021, respectively (in thousands):

	2022		2021
Common stock options		31,759		31,864
Common stock purchase warrants		183,435		142,266
Convertible notes payable		94,172		60,329
		309,366		234,459