Annual report pursuant to Section 13 and 15(d)

Note G - Employee Benefit Plan (Details Textual)

v3.10.0.1
Note G - Employee Benefit Plan (Details Textual) - USD ($)
12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 654,001 $ 652,615 $ 520,530
First Level of Matching [Member]      
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 100.00%    
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 3.00%    
Second Level Of Matching [Member]      
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 50.00%    
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 3.00%