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Note 6 - Share-based Compensation (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Employee Stock Option [Member]          
Allocated Share-based Compensation Expense   $ 37 $ 37 $ 111 $ 111
Restricted Stock [Member] | Minimum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years        
Restricted Stock [Member] | Maximum [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years        
Restricted Stock [Member]          
Allocated Share-based Compensation Expense   $ 577 $ 644 $ 1,753 $ 1,932
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number   451,000 44,000 451,000 44,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 407,000        
Share Price $ 0.12        
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized   $ 48,840   $ 48,840  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   0   0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period       7,000  
Proceeds from Stock Options Exercised       $ 350 $ 350
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value   $ 1,960   $ 1,960