Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Income Taxes (Details Textual)

v3.10.0.1
Note 3 - Income Taxes (Details Textual)
3 Months Ended 12 Months Ended
Dec. 22, 2017
Sep. 30, 2018
Sep. 30, 2017
Jun. 30, 2019
Jun. 30, 2018
Effective Income Tax Rate Reconciliation, Percent, Total   24.90% 35.10%    
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 35.00% 21.00%     28.00%
Scenario, Forecast [Member]          
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent       21.00%