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Note 12 - Related Party Transactions (Details) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 6 Months Ended 1 Months Ended 6 Months Ended 6 Months Ended
Feb. 27, 2012
Payment [Member]
Communal [Member]
Jun. 30, 2013
Payment [Member]
Communal [Member]
Jan. 31, 2013
Additional Commited Payment [Member]
Communal [Member]
Jun. 30, 2013
5 Elements Efficienties (BVI) Ltd [Member]
Aug. 11, 2011
Chief Financial Officer [Member]
Jun. 30, 2013
Communal [Member]
Note 12 - Related Party Transactions (Details) [Line Items]            
Letters of Credit Outstanding, Amount         $ 250  
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest       50.00%    
Related Party Transaction, Amounts of Transaction 523 175 425,000      
Related Party Transaction, Expenses from Transactions with Related Party           $ 113