Condensed Consolidated Balance Sheets (Parenthetical) - £ / shares	Jun. 30, 2023	Dec. 31, 2022
Condensed Consolidated Balance Sheets
Ordinary shares, nominal value	£ 0.01	£ 0.01
Ordinary shares, shares authorized	59,612,613	57,820,181
Ordinary shares, shares issued	30,585,940	29,873,893
Ordinary shares, shares outstanding	30,585,940	29,873,893