Note 13 - Subsequent Event (Details Textual) - Subsequent Event [Member] - Strategic Partnership for Joint Development and Sales Technology Solutions [Member] $ / shares in Units, $ in Millions	Jul. 30, 2020 USD ($) $ / shares shares
Software Platform Subscription, Term (Year)	5 years
Stock Issued During Period, Shares, New Issues (in shares) | shares	3,306,924
Shares Issued, Price Per Share (in dollars per share) | $ / shares	$ 19.7085
Proceeds from Issuance of Common Stock | $	$ 65.2