Note 14 - Series A 8% Convertible Preferred Stock (Details) - USD ($)		12 Months Ended
	Nov. 14, 2017	Mar. 31, 2018	Jun. 30, 2018
Note 14 - Series A 8% Convertible Preferred Stock (Details) [Line Items]
Stock Issued During Period, Shares, New Issues		500,000
Preferred Stock, Par or Stated Value Per Share			$ 0.10
Series A Preferred Stock [Member]
Note 14 - Series A 8% Convertible Preferred Stock (Details) [Line Items]
Stock Issued During Period, Shares, New Issues	500,000
Proceeds from Issuance of Convertible Preferred Stock	$ 3,000,000
Preferred Stock, Par or Stated Value Per Share	$ 6.00
Convertible Preferred Stock, Conversion Price	$ 3.00
Preferred Stock, Dividend Rate, Percentage	8.00%
Preferred Stock, Conversion Basis	calculated on the basis of a 360 day year, consisting of twelve 30-day months, and shall accrue from the date of issuance of such shares of Series A Preferred, payable quarterly in cash
Dividends Payable, Current			$ 90,667