Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Preferred stock, Par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, Par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	11,406,976	296,629
Common stock, shares outstanding (in shares)	11,406,221	295,717
Series A Redeemable convertible preferred stock
Preferred stock, shares authorized (in shares)	22,501,174	22,501,174
Preferred stock, shares issued (in shares)	0	22,501,174
Preferred stock, shares outstanding (in shares)	0	22,501,174
Series B Redeemable convertible preferred stock
Preferred stock, shares authorized (in shares)	82,891,619	82,891,619
Preferred stock, shares issued (in shares)	0	63,032,500
Preferred stock, shares outstanding (in shares)	0	63,032,500

Face amount or stated value per share of common stock.

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