Related Party Transactions - Related party balances (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Related party balances:
Due from Related Parties, Current	$ 345	$ 1,125
Due to related parties, current	(4,067)	(7,325)
Due to related parties, long term	$ (385)	$ (385)

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Name:	us-gaap_DueFromRelatedPartiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant