Note 14 - Stockholders' Equity (Details Textual)		6 Months Ended
	Nov. 17, 2017	Dec. 31, 2017 shares
Series B Convertible Preferred Stock [Member]
Convertible Preferred Stock, Shares Issued upon Conversion		20
Convertible Preferred Stock, Conversion Eligible, Days after Issuance has Transpired		270 days
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	30