Note 8 - Property, Plant and Equipment (Details) - Property, Plant and Equipment (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 16,311	$ 16,311
Less: accumulated depreciation	(4,822)	(4,559)
	11,489	11,752
PV Solar Systems [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	14,852	14,852
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	269
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	1,153	1,153
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 4	$ 4