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	6 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net (loss) income attributable to Gaiam, Inc. common shareholders:
(Loss) income from continuing operations	$ (2,390)	$ 7,977	$ (4,550)	$ 5,720
Income (loss) from discontinued operations	2	(129)	28	1,852
Net (loss) income attributable to Gaiam, Inc.	$ (2,388)	$ 7,848	$ (4,522)	$ 7,572
Weighted average shares for basic and diluted net loss per share	24,090	22,741	24,048	22,736
Net (loss) income per share attributable to Gaiam, Inc. common shareholders-basic and diluted:
(Loss) income from continuing operations	$ (0.10)	$ 0.36	$ (0.19)	$ 0.25
Income (loss) from discontinued operations	$ 0.00	$ (0.01)	$ 0.00	$ 0.08
Basic and diluted net (loss) income per share attributable to Gaiam, Inc.	$ (0.10)	$ 0.35	$ (0.19)	$ 0.33

Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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Amount of income (loss) from a disposal group, net of income tax before extraordinary items allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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