Note 2 - Summary of Significant Accounting Policies (Details) - Property, Plant and Equipment Useful Lives	12 Months Ended
	Dec. 31, 2014
Plant and Machinery [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	5 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	5 years
Computer Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	3 years
Computer Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	5 years
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	3 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Leasehold improvements	The shorter of the estimated life or the lease term
PV Solar Systems [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	25 years
PV Solar Systems [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	27 years