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Note 17 - Derivative Financial Instruments (Details) (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2013
Dec. 31, 2013
Swap One [Member]
Eurobank [Member]
Dec. 31, 2013
Swap One [Member]
Eurobank [Member]
Minimum [Member]
Dec. 31, 2013
Swap One [Member]
Eurobank [Member]
Maximum [Member]
Dec. 31, 2013
Swap One [Member]
Dec. 31, 2013
Swap Two [Member]
Eurobank [Member]
Dec. 31, 2013
Swap Two [Member]
Eurobank [Member]
Minimum [Member]
Dec. 31, 2013
Swap Two [Member]
Eurobank [Member]
Maximum [Member]
Dec. 31, 2013
Swap Two [Member]
Dec. 31, 2013
Swap Three [Member]
Eurobank [Member]
Dec. 31, 2013
Swap Three [Member]
Eurobank [Member]
Minimum [Member]
Dec. 31, 2013
Swap Three [Member]
Eurobank [Member]
Maximum [Member]
Dec. 31, 2013
Swap Three [Member]
Dec. 31, 2013
Swap Four [Member]
Eurobank [Member]
Dec. 31, 2013
Swap Four [Member]
Eurobank [Member]
Minimum [Member]
Dec. 31, 2013
Swap Four [Member]
Eurobank [Member]
Maximum [Member]
Dec. 31, 2013
Swap Four [Member]
Jul. 14, 2008
Interest Rate Swap [Member]
Eurobank [Member]
Dec. 31, 2013
Interest Rate Swap [Member]
Jul. 08, 2009
First Two Contracts [Member]
Eurobank [Member]
Jan. 21, 2011
Last Two Contracts [Member]
Eurobank [Member]
Dec. 31, 2013
Eurobank [Member]
Jan. 31, 2011
Eurobank [Member]
Jul. 08, 2009
Eurobank [Member]
Dec. 31, 2011
Put Option [Member]
Dec. 31, 2011
Call Option [Member]
Note 17 - Derivative Financial Instruments (Details) [Line Items]                                                      
Derivative, Inception Date     Jul. 14, 2008 Jul. 14, 2008     Jul. 08, 2009 Jul. 08, 2009     Jan. 21, 2011 Jan. 21, 2011     Sep. 20, 2013 Sep. 20, 2013                      
Derivative, Number of Instruments Held   4                                 4 3       2 2    
Derivative, Notional Amount   $ 45,000,000                                     $ 25,000,000            
Derivative Liability, Notional Amount                                           10,000,000          
Derivative, Fixed Interest Rate           3.99%       2.88%       2.29%       1.29%                  
Derivative, Remaining Maturity                                             5 years     360 days 360 days
Derivative, Maturity Date         Sep. 20, 2013       Jul. 08, 2014       Dec. 31, 2016       Dec. 31, 2016                    
Option Indexed to Issuer's Equity, Strike Price 16,500                                                   23,500
Derivative, Gain (Loss) on Derivative, Net $ 336,552