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Note 7 - Loan Payable (Details) (USD $)
 0 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Jan. 07, 2013
Jan. 23, 2012
Dec. 31, 2013
Dec. 31, 2013
Foreign Exchange Risk [Member]
Dec. 31, 2013
Operating Demand Loan [Member]
Dec. 31, 2012
Aggregate Advances [Member]
2012 DLR Loan [Member]
Dec. 31, 2012
2012 DLR Loan [Member]
Dec. 31, 2013
2012 DLR Loan [Member]
Dec. 31, 2012
2012 DLPR Loan [Member]
Dec. 31, 2013
2012 DLPR Loan [Member]
Dec. 31, 2012
DLR Loan [Member]
Dec. 31, 2013
DLR Loan [Member]
Jan. 07, 2013
2011 DLR [Member]
Dec. 31, 2012
Maximum [Member]
2012 DLR Loan [Member]
Note 7 - Loan Payable (Details) [Line Items]                            
Line of Credit Facility, Maximum Borrowing Capacity       $ 3,500,000 $ 1,000,000   $ 14,000,000           $ 5,200,000 $ 14,000,000
Debt Instrument, Basis Spread on Variable Rate         1.25% 2.50% 1.25%   1.25%          
Proceeds from Lines of Credit 5,200,000 4,000,000                       2,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage                     0.20%      
Line of Credit Facility Maturity             4 years              
Line of Credit Facility, Amount Outstanding         0     5,200,000   1,100,000   5,200,000    
Stock Repurchased During Period, Shares (in Shares)                         4,114,121  
Share Price (in Dollars per share)                         $ 1.50  
Stock Repurchased During Period, Value                         6,171,656  
Payments of Stock Issuance Costs                         106,000  
Line of Credit Facility, Covenant Period       18 months                    
Derivative Asset, Fair Value, Gross Asset       26,500,000                    
Line of Credit Facility, Monitoring Fee         500                  
Maximum Total Funded Debt to EBITDA     2.00                      
Minimum Fixed Charge Coverage     1.20                      
Line of Credit Facility Maximum Annual Capital Expenditure Ceiling     $ 3,600,000