Note 8 - Property, Plant and Equipment (Details) - Property, Plant and Equipment (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 22,858	$ 22,843
Less: accumulated depreciation	(4,570)	(4,089)
	18,288	18,754
PV Solar System [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	20,887	20,783
Plant and Machinery [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	33	33
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	376	388
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	1,503	1,499
Trucks [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross		44
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 59	$ 96