Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Consolidated Balance Sheets
Redeemable convertible Preferred Stock, Par Value (in dollar per share)	$ 0.0001	$ 0.0001
Redeemable convertible Preferred Stock, share authorized	0	12,000,000
Redeemable convertible Preferred stock, share issued	0	4,801,020
Redeemable convertible Preferred stock, share outstanding	0	4,801,020
Redeemable convertible Preferred Stock, liquidation preference		$ 16,800
Preferred stock, par value (in dollar per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	0
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollar per share)	$ 0.001	$ 0.0001
Common stock, shares authorized	100,000,000	45,800,000
Common stock, shares issued	15,592,718	5,166,812
Common stock, shares outstanding	15,592,718	5,166,812

Face amount or stated value per share of common stock.

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