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Summary of Significant Accounting Policies - Research and Development (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Funds Received	$ 44	$ 40
Engineering and installation
Funds Received		$ 50

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- Definition

Amount provide funding of research and development costs over periods

+ References

No definition available.

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- Details

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