Stockholders' Equity (Deficit) - Summary of our Outstanding and Exercisable Warrants and Related Transactions (Details) - Warrant [Member] - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Class Of Warrant Or Right [Line Items]
Warrants, outstanding, beginning balance	103,000
Warrants, outstanding, granted	1,000
Warrants, outstanding, expired	(3,000)
Warrants, outstanding, ending balance	101,000	103,000
Weighted average exercise price, outstanding, beginning balance	$ 76.19
Weighted average exercise price, outstanding, granted	58.50
Weighted average exercise price, outstanding, expired	341.50
Weighted average exercise price, outstanding, ending balance	$ 69.45	$ 76.19
Weighted average remaining contractual life (in years), outstanding	7 years 10 months 24 days	8 years 3 months 18 days
Warrants, exercisable, beginning balance	103,000
Warrants, exercisable, ending balance	101,000	103,000
Weighted average exercise price, exercisable, beginning balance	$ 76.19
Weighted average exercise price, exercisable, ending balance	$ 69.51	$ 76.19
Weighted average remaining contractual life (in years), exercisable	7 years 10 months 24 days	8 years 3 months 18 days