Summary of Significant Accounting Policies (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022 USD ($) customer revenue_source	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) customer	Dec. 31, 2020 USD ($)
Summary of Significant Accounting Policies
Restricted cash	$ 50,000	$ 0	$ 50,000	$ 0
Number of revenue sources | revenue_source	2
Total Revenues	$ 18,836	7,978
Product sales, net
Summary of Significant Accounting Policies
Total Revenues	$ 13,354	$ 6,350
Trade Receivables | Customer Concentration Risk
Summary of Significant Accounting Policies
Number of major customers | customer	10		9