Note 12 - Nonrecourse Debt (Details) (USD $)
1 Months Ended
Dec. 31, 2013
Woodstock Hills Wind Farm [Member]
 
Note 12 - Nonrecourse Debt (Details) [Line Items]  
Maintenance and Repair Reserve Required Under Debt Covenants $ 250,000
MaintenanceAndRepairReserveUtilized 150,000
Quarterly Contribution to Maintenance and Repair Reserve 8,500
Valley View Wind Farm [Member]
 
Note 12 - Nonrecourse Debt (Details) [Line Items]  
Letters of Credit Outstanding, Amount 750,000
Debt Service Reserve 600,000
Maintenance and Repair Reserve [Member] | Woodstock Hills Wind Farm [Member]
 
Note 12 - Nonrecourse Debt (Details) [Line Items]  
Restricted Cash and Investments 100,000
Maintenance and Repair Reserve [Member] | Valley View Wind Farm [Member]
 
Note 12 - Nonrecourse Debt (Details) [Line Items]  
Debt Service Reserve 150,000
Debt Service Reserve [Member] | Valley View Wind Farm [Member]
 
Note 12 - Nonrecourse Debt (Details) [Line Items]  
Debt Service Reserve $ 450,000