Reconciliation of Reportable Segments' Assets to Consolidated Total Assets (Parenthetical) (Detail)

v2.4.0.6

Reconciliation of Reportable Segments' Assets to Consolidated Total Assets (Parenthetical) (Detail) (Real Goods Solar, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2010
Real Goods Solar
Segment Reporting, Asset Reconciling Item [Line Items]
Reduction in net deferred tax assets due to restatement	$ 364