Principles of Consolidation Organization and Nature of Operations - Additional information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013 LegalMatter	Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Debt financing, cash balance	$ 12,400,000
Related party debt	4,150,000	6,850,000
Revolving line of credit maturity date	Sep. 30, 2014
Number of non-compliance notices received from Nasdaq Stock Market (NASDAQ)	4
Fifth Loan Modification Agreement
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Revolving line of credit maturity date	Sep. 29, 2014
Revolving line of credit, term loan	2,000,000
Gaiam Incorporated
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Related party debt	2,700,000	2,700,000
Riverside Renewable Energy Investments
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Related party debt	4,150,000	4,150,000
Riverside Renewable Energy Investments | Related Party Debt Due April Twenty Six Twenty Fourteen
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Related party debt	1,000,000
Related party extension date	Apr. 26, 2014
Riverside Renewable Energy Investments | Related Party Debt Due September Three Twenty Fourteen
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Related party debt	3,000,000
Related party extension date	Sep. 03, 2014
Riverside Renewable Energy Investments | Related Party Debt Due October Twenty Nine Twenty Twenty Fourteen
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Related party debt	$ 150,000
Related party extension date	Oct. 29, 2014