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RELATED PARTY BALANCES AND TRANSACTIONS - Additional information (Details) - USD ($) $ in Thousands	Jun. 04, 2019	Apr. 30, 2019	Aug. 31, 2021	Jun. 30, 2021	Jun. 10, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Payments	$ 1,600
Number of ordinary shares to be issued					4,213,629
Capital shares reserved for future issuance						4,200,000
Outstanding loans and receivables		$ 76,007
Waiver agreement
Related Party Transaction [Line Items]
Contribution with in two weeks after the closing of business combination		1,600
Liabilities to be paid by cash		4,000
Liabilities to be paid by non-cash		2,600
Restructuring debt prior to reverse recapitalization		$ 2,600
East West Bank | Subsequent Event [Member]
Related Party Transaction [Line Items]
Short term debt			$ 2,000	$ 6,130

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- Definition

Number of ordinary shares agreed to issue.

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- Definition

Contribution to KAH within two weeks after the closing of the Business Combination.

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Limit on amount of liabilities to be paid by cash.

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- Definition

Outstanding loans and receivables.

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Amount of payments to related parties.

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Restructuring related party debt prior to reverse recapitalization.

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- Definition

Aggregate number of common shares reserved for future issuance.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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