Schedule of Outstanding Warrants to Purchase Common Stock (Details) - $ / shares	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Class of Warrant or Right [Line Items]
Common stock purchase warrants issued and outstanding	11,937,450	12,315,328
Weighted average exercise price /share	$ 1.60	$ 1.68
Series Z Warrants [Member]
Class of Warrant or Right [Line Items]
Common stock purchase warrants issued and outstanding	11,937,450	11,937,455
Weighted average exercise price /share	$ 1.60	$ 1.60
Warrants expiration date	2024-04
Series W Warrants [Member]
Class of Warrant or Right [Line Items]
Common stock purchase warrants issued and outstanding		377,873
Weighted average exercise price /share		$ 5.00
Warrants expiration date	2022-01