Stockholders' Equity (Deficit) - Warrants outstanding (Details)	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Stockholders' Equity
Warrants outstanding	88,556
Common stock warrants expiring in 2027
Stockholders' Equity
Warrants outstanding	80,177
Warrants exercise price | $ / shares	$ 28.65
Expiration dates	2027
Common stock warrants expiring in 2028
Stockholders' Equity
Warrants outstanding	8,379
Warrants exercise price | $ / shares	$ 28.65
Expiration dates	2028