Note 9 - Property, Plant and Equipment (Details) - Property, Plant and Equipment (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 16,311	$ 22,843
Less: accumulated depreciation	(4,559)	(4,089)
	11,752	18,754
PV Solar Systems [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	14,852	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	269	388
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	1,153	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	$ 4	$ 96