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, 2014	Mar. 31, 2013
Net loss attributable to Gaiam, Inc. common shareholders:
Loss from continuing operations	$ (2,160)	$ (2,257)
Income from discontinued operations	26	1,981
Net loss attributable to Gaiam, Inc.	$ (2,134)	$ (276)
Weighted average shares for basic net loss per share	24,006	22,732
Effect of dilutive securities:
Weighted average of common stock and stock options
Weighted average shares for diluted net loss per share	24,006	22,732
Net income (loss) per share attributable to Gaiam, Inc. common shareholders-basic:
Income (loss) from continuing operations	$ (0.09)	$ (0.10)
Income from discontinued operations	$ 0.00	$ 0.09
Basic net income (loss) per share attributable to Gaiam, Inc.	$ (0.09)	$ (0.01)
Net income (loss) per share attributable to Gaiam, Inc. common shareholders-diluted:
Income (loss) from continuing operations	$ (0.09)	$ (0.10)
Income from discontinued operations	$ 0.00	$ 0.09
Diluted net income (loss) per share attributable to Gaiam, Inc.	$ (0.09)	$ (0.01)