Stock-Based Compensation, Warrants (Details) - Warrants [Member] - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Class of Warrant or Right [Abstract]
Warrants outstanding (in shares)	1,631,798	1,631,948
Minimum [Member]
Class of Warrant or Right [Abstract]
Exercise price of warrants (in dollars per share)	$ 2.50
Warrants exercisable period	3 months
Maximum [Member]
Class of Warrant or Right [Abstract]
Exercise price of warrants (in dollars per share)	$ 41,916
Warrants exercisable period	3 years 10 months 6 days