Note 15 - Power Purchase Contract Liability (Tables)
 12 Months Ended
Dec. 31, 2013
Contractors [Abstract]  
Schedule of Long-term Contracts for Purchase of Electric Power [Table Text Block]
   

December 31,

2013

   

December 31,

2012

 

Rate levelization adjustment

  $ 918,183     $ 594,234  

Unfavorable contract liabilities

    3,271,015       3,431,884  

Total

  $ 4,189,198     $ 4,026,118