Note 13 - Commitments and Contingencies (Details) (USD $)								0 Months Ended	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Solar Modules [Member]	Jun. 30, 2013 Inverter and Balance of System Components [Member]	Jun. 30, 2013 Guarantee Obligations [Member]	Dec. 31, 2012 Guarantee Obligations [Member]	Jun. 30, 2013 Greystone [Member]	Nov. 29, 2010 Motech Industries Inc [Member]	Jun. 30, 2013 Motech Industries Inc [Member]
Note 13 - Commitments and Contingencies (Details) [Line Items]
Restricted Cash and Cash Equivalents	$ 500,000	$ 400,000
Redeemable Noncontrolling Interest, Equity, Carrying Amount							1,000,000
Guarantees, Fair Value Disclosure	100,000
Long-term Debt					12,300,000	12,800,000
Warranty Term			25 years	5 years
Loss Contingency, Damages Sought, Value								339,544.15
Litigation Settlement, Amount									$ 150,000