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Note 11 - Stockholders's Equity: (Detail) (USD $)
 0 Months Ended 1 Months Ended 3 Months Ended
Dec. 15, 2011
Mar. 31, 2013
Mar. 31, 2013
Dec. 31, 2012
Jan. 31, 2012
Stock Repurchased and Retired During Period, Shares (in Shares)     (4,114,121)    
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) $ 1.50        
Stock Repurchased and Retired During Period, Value $ 6,171,656   $ 822,887    
Stock Repurchased Transaction Costs 106,000        
Line of Credit Facility, Amount Outstanding 5,200,000 5,200,000 5,200,000    
Shares, Outstanding (in Shares)   40,121,797 40,121,797 44,322,159 40,226,875
Stock Repurchase Program, Authorized Amount   10,000,000      
Stock Repurchased During Period, Value     259,875    
Repurchase of Equity [Member]
          
Stock Repurchased and Retired During Period, Shares (in Shares) 4,114,121        
Normal Course Issuer Bid Member
          
Stock Repurchased and Retired During Period, Shares (in Shares)     (143,073)    
Stock Repurchased and Retired During Period, Value     $ 28,615