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Net Loss Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
Net Loss Per Share (Details) - shares shares in Thousands	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Amount of weighted-average anti-dilutive common shares	10,024	2,776	7,415	1,722
Warrant
Amount of weighted-average anti-dilutive common shares	9,038	2,083	6,433	1,175
Employee Stock Option
Amount of weighted-average anti-dilutive common shares	986	693	982	547