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Note 3 - Gerrity Oil Joint Venture (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Purchase Price Allocation [Table Text Block]
Cash and cash equivalents
  $ 2,000  
Accounts receivable, net
    118  
Oil and gas property
    1,543  
Other assets
    448  
Trade payables
    (102 )
Asset retirement obligation
    (7 )
Total identifiable net assets
  $ 4,000