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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events May 2020 Public Offering On April 28, 2020, we announced the pricing of an underwritten public offering of 11,630 ordinary shares, in the form of ADSs at a price to the public of $10.75 per ADS. Each ADS represents the right to receive one ordinary share. The gross proceeds to us from the offering were approximately $125,000, before deducting underwriting discounts and commissions and estimated offering expenses. In connection with the public offering, we granted the underwriters a 30-day option to purchase up to an additional 1,745 ADSs at the public offering price less the underwriting discounts and commissions. The offering closed on May 1, 2020.