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Restructuring - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended					3 Months Ended		6 Months Ended
	Apr. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Apr. 30, 2021	Dec. 31, 2020	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring recovery						$ 0	$ (3)	$ 0	$ (22)
Purchase price	$ 1,800			$ 1,500
Stockholders' equity		$ 6,209	$ 5,603		$ 4,255	$ 4,171	$ 5,603	$ 4,171	$ 5,603	$ 3,432	$ 3,278	$ 1,714
Warrant liability - modification					$ 1,400
December 2021 Private Placement
Restructuring Cost and Reserve [Line Items]
Proceeds from sale of common stock and warrants		$ 4,000
Investor Warrants
Restructuring Cost and Reserve [Line Items]
Proceeds from sale of common stock and warrants			$ 4,500

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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