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Note 6 - Loan Payable (Details) (USD $)
 0 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 15, 2011
Jun. 30, 2013
Mar. 31, 2012
Jun. 30, 2013
Dec. 31, 2012
Note 6 - Loan Payable (Details) [Line Items]          
Line of Credit Facility Maturity         4 years
Line of Credit Facility, Amount Outstanding $ 5,200,000 $ 5,200,000   $ 5,200,000  
Proceeds from Lines of Credit     5,200,000    
Stock Repurchased and Retired During Period, Value 6,171,656 259,875   259,875  
Derivative Asset, Fair Value, Gross Asset   (800,635)   (800,635) 444,782
Maximum Total Funded Debt To EBITDA Ratio       2.00:1; and (ii)Minimum Fixed Charge Coverage of 1.20:1  
Line of Credit Facility Maximum Annual Capital Expenditure Ceiling       3,600,000  
Bank of Montreal (“BMO”) U.S. Base Rate Plus Percent [Member]
          
Note 6 - Loan Payable (Details) [Line Items]          
Debt Instrument, Basis Spread on Variable Rate         1.25%
LIBOR Plus Percent [Member]
          
Note 6 - Loan Payable (Details) [Line Items]          
Debt Instrument, Basis Spread on Variable Rate         2.50%
Foreign Exchange Risk [Member]
          
Note 6 - Loan Payable (Details) [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity   3,500,000   3,500,000  
Line of Credit Facility, Covenant Period       18 months  
Derivative Asset, Fair Value, Gross Asset   18,100,000   18,100,000  
Operating Demand Loan [Member]
          
Note 6 - Loan Payable (Details) [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity   1,000,000   1,000,000  
Debt Instrument, Basis Spread on Variable Rate       1.25%  
Line of Credit Facility, Amount Outstanding   0   0  
Line of Credit Facility, Monitoring Fee       500  
Dutch Auction Member
          
Note 6 - Loan Payable (Details) [Line Items]          
Stock Repurchased During Period, Shares (in Shares)     4,114,121    
Share Price (in Dollars per share)     $ 1.50    
Stock Repurchased and Retired During Period, Value       6,171,656  
Stock Repurchased And Retired During Period Transaction Cost       106,000  
Stock Repurchase [Member]
          
Note 6 - Loan Payable (Details) [Line Items]          
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage         0.20%
DLR Loan [Member]
          
Note 6 - Loan Payable (Details) [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity         14,000,000
Debt Instrument, Basis Spread on Variable Rate         1.25%
Line of Credit Facility, Amount Outstanding   2,300,000   2,300,000 3,700,000
Revolving Demand Loan Facilities [Member]
          
Note 6 - Loan Payable (Details) [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity         14,000,000
Line of Credit Facility Share Repurchase Limit         $ 2,000,000