Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Basis of Presentation (Details Textual)

v3.7.0.1
Note 1 - Basis of Presentation (Details Textual) - Adjustments for New Accounting Principle, Early Adoption [Member] - Accounting Standards Update 2016-09 [Member]
3 Months Ended 9 Months Ended
Jun. 30, 2017
Jun. 30, 2017
USD ($)
Three Months Ended June 30, 2016 [Member]    
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense   $ 79,640
Increase (Decrease) in Effective Income Tax Rate Reconciliation, Percent   2.30%
Increase (Decrease) in Earnings Per Share, Basic 0.01  
Nine Months Ended June 30, 2016 [Member]    
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense   $ 238,087
Increase (Decrease) in Effective Income Tax Rate Reconciliation, Percent   3.10%
Prior Period Reclassification Adjustment   $ 1,786,000
Increase (Decrease) in Earnings Per Share, Basic   0.01