Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Capital Stock, Stock Plans and Stock-based Compensation (Details Textual)

v3.5.0.2
Note 5 - Capital Stock, Stock Plans and Stock-based Compensation (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Aug. 02, 2016
Jul. 28, 2016
May 15, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Non-qualified Stock Options [Member] | The 2003 Outside Directors Stock Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period   10 years          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross   12,000          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period   180 days          
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price   $ 4.60          
Incentive Stock Options [Member] | The 2010 Stock Option Plan [Member] | Executive Vice President [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures     50,000        
Incentive Stock Options [Member] | The 2010 Stock Option Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term     6 years        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     3 years        
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price     $ 3.97        
The 2003 Outside Directors Stock Plan [Member]              
Stock Issued During Period, Shares, Share-based Compensation, Gross           43,172  
Allocated Share-based Compensation Expense           $ 181,000  
Warrant [Member] | Robert Freguson and William Lampson Lenders [Member]              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 70,000            
Class of Warrant or Right, Issued During Period 2            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross             0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures           62,000 12,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price           $ 4.09 $ 4.19
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit           2.79  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit           $ 14.75  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized       $ 103,000   $ 103,000  
Employee Service Share-based Compensation Nonvested Awards, Total Compensation Cost Not Yet Recognized, Remainder of Fiscal Year       29,000   29,000  
Employee Service Share-based Compensation Nonvested Awards, Total Compensation Cost not yet Recognized in Year Two       43,000   43,000  
Employee Service Share-based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized in Year Three       30,000   30,000  
Employee Service Share-based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized In Year Four       1,000   1,000  
Allocated Share-based Compensation Expense       $ 25,000 $ 15,000 $ 69,000 $ 62,000