Derivative Liability - Changes in Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2022	Jun. 30, 2021
2018 Exit Fee
Change in Fair Value of Derivative Liability
Ending balance	$ 700
2022 Exit Fee
Change in Fair Value of Derivative Liability
Ending balance	400
Exit Fee derivative liability
Change in Fair Value of Derivative Liability
Beginning balance	698	$ 1,376
2022 Exit Fee addition at fair value	375	0
Ending balance	1,091	663
Exit Fee derivative liability \| 2018 Exit Fee
Change in Fair Value of Derivative Liability
Changes in estimated fair value	(29)	(713)
Exit Fee derivative liability \| 2022 Exit Fee
Change in Fair Value of Derivative Liability
Changes in estimated fair value	$ 47	$ 0

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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