Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details)

v3.2.0.727
Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details) - USD ($)
 6 Months Ended
Jul. 25, 2011
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details) [Line Items]          
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, Outstanding, Number   221,635 [1] 300,800 [1] 239,023 362,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number   212,835 300,800    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in Dollars per share)   $ 7.91 [1] $ 9.85 [1] $ 7.81 $ 9.53
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term [1]   4 years 255 days 2 years 292 days    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit (in Dollars per share)   $ 2.79 $ 2.79    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit (in Dollars per share)   14.75 $ 14.75    
Reduction in Stock Based Compensation Expense (in Dollars)     $ 54,000    
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)   $ 0 $ 0    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)   $ 99,000      
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Remaining Fiscal Year (in Dollars)   27,000      
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized, Next Twelve Months (in Dollars)   53,000      
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized In Year Two (in Dollars)   $ 19,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period   2,388 0    
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in Dollars per share)   $ 2.79 $ 0    
The 2010 Stock Option Plan [Member] | Chief Operating Officer [Member]          
Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 60,000        
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share) $ 7.85        
The 2003 Outside Directors Stock Plan [Member]          
Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details) [Line Items]          
Stock Issued During Period, Shares, Share-based Compensation, Gross   33,910      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period   2,388      
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures   2,388      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (in Dollars per share)   $ 2.79      
Employee Stock Option [Member] | The 2010 Stock Option Plan [Member]          
Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number   55,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number   0      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in Dollars per share)   $ 5.00      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term   5 years      
Employee Stock Option [Member] | The 2010 Stock Option Plan [Member] | Chief Operating Officer [Member]          
Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years        
Employee Stock Option [Member] | Contractual Term with One-third Yearly Vesting [Member] | The 2010 Stock Option Plan [Member] | Chief Operating Officer [Member]          
Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details) [Line Items]          
Share Based Compensation Maximum Contractual Term 6 years        
Director Stock Options [Member] | The 2003 Outside Directors Stock Plan [Member]          
Note 4 - Capital Stock, Stock Plans and Stock Based Compensation (Details) [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number   166,635      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number   166,635      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in Dollars per share)   $ 8.88      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term   4 years 219 days      
[1] Options with exercise prices ranging from $2.79 to $14.75