Current report filing

Note 2 - Significant Accounting Policies (Details Textual)

v3.19.1
Note 2 - Significant Accounting Policies (Details Textual) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2018
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years  
Subsequent Event [Member]    
Operating Leases, Future Minimum Payments Due, Total   $ 2