Related Party transactions (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Related Party Transaction
Issuance of shares upon warrant exercise	$ 93
Affiliated Entity | Common Stock
Related Party Transaction
Issuance of shares upon warrant exercise (in shares) | shares	307,211
Affiliated Entity | Common Stock | Phoenix Venture Partners II, L.P
Related Party Transaction
Class of warrant or right, exercise price of warrants or rights (usd per share) | $ / shares	$ 0.3027
Issuance of shares upon warrant exercise	$ 100