Note 14 - Subsequent Events (Details Textual) - shares	1 Months Ended	9 Months Ended	12 Months Ended
	Jan. 21, 2019	Nov. 30, 2018	Feb. 28, 2018
Stock Issued During Period, Shares, New Issues		1,071,000	2,836,000
Subsequent Event [Member]
Stock Issued During Period, Shares, New Issues	6,260,000