Note 2 - Schedule of Extinguishment of Debt (Details) - USD ($)		1 Months Ended		3 Months Ended		9 Months Ended
	Feb. 16, 2016	Feb. 29, 2016	Aug. 31, 2015	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Thirty-Year Debentures [Member] | Series A Warrant [Member]
Loss on modification of Series A warrants				$ (149,000)
Thirty-Year Debentures [Member] | Series B Warrant [Member]
Cancellation of Series B derivative obligation				(159,000)
Thirty-Year Debentures [Member]
Repayments of Debt		$ 7,500,000		7,500,000
Repayment of Thirty-Year debentures			$ (5,500,000)	(5,500,000)
Payment of accrued liquidated damages and interest				(897,000)
Loss on extinguishment of debt				795,000
Series B Warrant [Member]
Cancellation of Series B derivative obligation	$ (159,000)
Loss on modification of Series A warrants				149,000		$ 149,000
Loss on extinguishment of debt				$ 795,000		$ 795,000