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6. Accounts Receivable, net (Details Narrative) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Solar Juice [Member]
Accounts receivable pledged	$ 9,683	$ 9,761

X

- Definition

Accounts receivable pledged

+ References

No definition available.

+ Details

Name:	spi_AccountsReceivablePledged
Namespace Prefix:	spi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=spi_SolarJuiceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: