Quarterly report pursuant to Section 13 or 15(d)

Note 1 - Organization, Business and Financial Condition (Details Textual)

v3.19.2
Note 1 - Organization, Business and Financial Condition (Details Textual)
$ in Millions
1 Months Ended 6 Months Ended
Jul. 17, 2019
Jul. 31, 2019
USD ($)
Jun. 30, 2019
Number of Operating Segments     1
Subsequent Event [Member] | Underwritten Public Offering [Member]      
Proceeds from Issuance or Sale of Equity, Net of Issuance Costs   $ 6.6  
Reverse Stock Split [Member] | Subsequent Event [Member]      
Stockholders' Equity Note, Stock Split, Conversion Ratio 20