Preferred Stock - Series B-2 Convertible Preferred Stock (Details)	1 Months Ended			12 Months Ended
	Dec. 31, 2020 shares	Oct. 31, 2020 shares	Dec. 31, 2019 $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
Preferred stock, shares outstanding	857,055		5,537,062	5,537,062
Series B-2 convertible preferred stock
Number of shares for which unexercised prepaid forward contracts are exercisable			1,236,223
Shares issued in exchange of convertible preferred stock			695,127
Shares Authorized	10,165		10,165	10,165
Conversion ratio				190
Value of shares issued on conversion | $				$ 153.90
Conversion Price (in dollars per share) | $ / shares			$ 0.81	$ 0.81
Shares converted	6,559	975		190
Shares issued on conversion	1,246,210	500,186
Preferred stock, shares outstanding	0		10,165	10,165