Quarterly report pursuant to Section 13 or 15(d)

Computation of Basic and Diluted Net Loss Per Share Attributable to Gaiam, Inc. Common Shareholders (Detail)

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Computation of Basic and Diluted Net Loss Per Share Attributable to Gaiam, Inc. Common Shareholders (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Net loss attributable to Gaiam, Inc. common shareholders:    
Loss from continuing operations $ (3,426)us-gaap_IncomeLossFromContinuingOperations $ (2,160)us-gaap_IncomeLossFromContinuingOperations
(Loss) income from discontinued operations (466)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity 26us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Net (loss) income attributable to Gaiam, Inc. $ (3,892)us-gaap_NetIncomeLoss $ (2,134)us-gaap_NetIncomeLoss
Weighted average shares for basic and diluted net loss per share 24,490us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted 24,006us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Net loss per share attributable to Gaiam, Inc. common shareholders-basic and diluted:    
Loss from continuing operations $ (0.14)us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare $ (0.09)us-gaap_IncomeLossFromContinuingOperationsPerBasicAndDilutedShare
(Loss) income from discontinued operations $ (0.02)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare $ 0.00us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicAndDilutedShare
Basic and diluted net loss per share attributable to Gaiam, Inc. $ (0.16)us-gaap_EarningsPerShareBasicAndDiluted $ (0.09)us-gaap_EarningsPerShareBasicAndDiluted