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Commitments and Contingencies - Additional Information (Details) - License agreement with ANR - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 22, 2013	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Commitments and Contingencies
Percentage of royalty on net revenue	4.00%
Royalty expense		$ 8	$ 4	$ 20	$ 10

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- Definition

Commitments and contingencies.

+ References

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- Definition

Percentage of royalty on net revenue.

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- Definition

Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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