Stockholders' Equity and Derivative Liability - Warrants - Components of changes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Number of Warrants Outstanding
Balance at the beginning of the period (in shares)	102,642	107,998
Expiration of warrants	(4,314)	(5,356)
Balance at end of period (in shares)	10,714	102,642
Cumulative Effect, Period of Adoption, Adjustment
Number of Warrants Outstanding
Balance at the beginning of the period (in shares)	87,614
Balance at end of period (in shares)		87,614
Warrants | (Level 3)
Derivative Instrument Liability
Balance at the beginning of the period	$ (11,673)	$ (5,623)
Change in fair value of warrants	(11,673)	6,050
Balance at end of period	$ 0	$ (11,673)