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Note 3 - Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Table Text Block]
   
December 31,
2012
   
December 31,
2011 As Recast (1)
 
PV solar systems
  $ 20,783     $ 14,852  
Plant and machinery
    33       740  
Furniture, fixtures and equipment
    388       466  
Computers and software
    1,499       1,606  
Trucks
    44       118  
Leasehold improvements
    96       505  
      22,843       18,287  
Less: accumulated depreciation
    (4,089 )     (4,206 )
    $ 18,754     $ 14,081  
Estimated Useful Lives [Member]
 
Property, Plant and Equipment [Table Text Block]
Plant and machinery (years)
  
5
   
Furniture, fixtures and equipment (years)
  
5
   
Computers and software (years)
3
5  
Equipment acquired under capital leases (years)
3
5  
Trucks (years)
  
3
   
Leasehold improvements
The shorter of the estimated life or the lease term  
Solar energy facilities (years)
  
20