Annual report pursuant to Section 13 and 15(d)

Note C - Shareholders' Equity (Details)

v2.4.0.8
Note C - Shareholders' Equity (Details) (USD $)
 12 Months Ended 12 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Feb. 28, 2010
Sep. 30, 2013
Employee Stock Option [Member]
Directors [Member]
Sep. 30, 2013
Employee Stock Option [Member]
Minimum [Member]
Sep. 30, 2013
Employee Stock Option [Member]
Maximum [Member]
Sep. 30, 2013
Cashless Method Stock Option Exercised [Member]
Sep. 30, 2013
Restricted Stock [Member]
Minimum [Member]
Sep. 30, 2013
Restricted Stock [Member]
Maximum [Member]
Jun. 30, 2013
Employee Stock Purchase Plan [Member]
Dec. 31, 2012
Employee Stock Purchase Plan [Member]
Jun. 30, 2012
Employee Stock Purchase Plan [Member]
Dec. 31, 2011
Employee Stock Purchase Plan [Member]
Sep. 30, 2013
Employee Stock Purchase Plan [Member]
Sep. 30, 2012
Employee Stock Purchase Plan [Member]
Minimum [Member]
Sep. 30, 2013
Directors [Member]
Sep. 30, 2013
Maximum [Member]
Note C - Shareholders' Equity (Details) [Line Items]                                  
Preferred Stock, Shares Authorized 500 500                              
Common Stock, Shares Authorized 50,000,000 50,000,000                              
Common Stock, Par or Stated Value Per Share (in Dollars per share) $ 0.01 $ 0.01                              
Temporary Equity, Shares Subscribed but Unissued     67,500                            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       1 year 3 years 5 years   1 year 5 years                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 4 years 62 days 4 years 357 days                           6 years 6 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 646,879                         203,245      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) $ 1,916,898                                
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 3 years 328 days                                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number 177,312                                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value (in Dollars) 699,602                                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 3.95                                
Share-based Compensation (in Dollars) 753,727 470,710                              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (156,057) (178,481)         114,417                    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value (in Dollars) 1,185,501 672,900                              
Stock Repurchased During Period, Shares 18,786 1,080                              
Treasury Stock Acquired, Average Cost Per Share (in Dollars per share) $ 11.88 $ 5.03                              
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent                             85.00%    
Stock Issued During Period, Shares, Employee Stock Purchase Plans                   17,597 18,000 17,662 11,267        
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share)   $ 5.59                 $ 3.82 $ 4.09 $ 6.24        
Payments Related to Tax Withholding for Share-based Compensation (in Dollars) $ 297,988                         $ 48,961