Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Basis of presentation and significant accounting policies - (Details) $ in Thousands, ¥ in Millions	1 Months Ended
	Apr. 30, 2020 CNY (¥)	Apr. 30, 2020 USD ($)	May 31, 2017 USD ($)	Sep. 30, 2020 USD ($)	Mar. 31, 2020
Basis of presentation and significant accounting policies
Retained earnings				$ 789
Equity interests acquired (as a percent)					47.90%
Consideration for additional equity interest acquired			$ 0
Restatement adjustment
Basis of presentation and significant accounting policies
Retained earnings				$ 800
Changchun Hualong Automotive Technology Co Ltd Changchun Hualong [Member]
Basis of presentation and significant accounting policies
Equity interests acquired (as a percent)	100.00%	100.00%			52.10%
Consideration for additional equity interest acquired	¥ 1.2	$ 200