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Note Payable (Details) - USD ($) $ in Thousands	May 01, 2021	Apr. 09, 2021	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Long-term debt, current portion			$ 1,703	$ 1,644
Long-term debt, excluding current portion			4,279	$ 4,727
Hi-Power Purchase Agreement \| Note payable
Debt Instrument [Line Items]
Long-term debt, current portion			4,970
Long-term debt, excluding current portion			$ 13,892
Hi-Power
Debt Instrument [Line Items]
Aggregate purchase price		$ 25,000
Amount due at closing	$ 5,000