Note 6 - Loan Payable (Details Textual) - USD ($)	3 Months Ended		9 Months Ended		69 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Sep. 25, 2014	Jan. 26, 2009
Construction Loan							$ 7,750,000
PA-1 [Member]
Debt Instrument, Debt Default, Amount						$ 8,137,117
Pennvest Loan [Member]
Construction Loan	$ 8,970,818		$ 8,970,818		$ 8,970,818
Accrued Interest and Late Charges Payable	1,216,818		1,216,818		1,216,818
Line of Credit Facility, Maximum Borrowing Capacity	7,754,000		$ 7,754,000		7,754,000
Term Loan, Period for Interest Only Payments			3 years
Term Loan, Period for Amortization of Principal			10 years
Repayments of Long-term Debt, Total					2,742,000
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	760,000		$ 760,000		760,000
Long-term Debt, Maturities, Repayments of Principal in Year Two	771,000		771,000		771,000
Long-term Debt, Maturities, Repayments of Principal in Year Three	794,000		794,000		794,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	819,000		819,000		819,000
Long-term Debt, Maturities, Repayments of Principal in Year Five	846,000		846,000		846,000
Long-term Debt, Maturities, Repayments of Principal after Year Five	1,022,000		1,022,000		$ 1,022,000
Interest Expense, Debt, Total	$ 49,373	$ 49,373	$ 148,121	$ 148,121
Pennvest Loan [Member] | Years One Through Five [Member]
Debt Instrument, Interest Rate During Period			2.547%
Pennvest Loan [Member] | Years Six Through Maturity [Member]
Debt Instrument, Interest Rate During Period			3.184%