Geographic Information - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Revenue earned
Revenues	$ 614	$ 799
Customer Concentration Risk \| Revenues \| Michigan State University
Revenue earned
Percentage of total revenue	94.00%
Grant revenue
Revenue earned
Revenues	$ 614	799
Grant revenue \| Systems Approach to Increasing Carbon Flux to Seed Oil
Revenue earned
Revenues	$ 575	$ 646

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details