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Note 7 - Common Stock Options and Warrants (Details) - $ / shares
9 Months Ended
Jul. 29, 2015
Sep. 30, 2015
Dec. 31, 2014
Note 7 - Common Stock Options and Warrants (Details) [Line Items]      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   52,631  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number   76,463 81,726
Director [Member]      
Note 7 - Common Stock Options and Warrants (Details) [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period 5,263    
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price (in Dollars per share) $ 1.235    
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 5 years    
Warrant [Member]      
Note 7 - Common Stock Options and Warrants (Details) [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Expirations   0