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Note 5 - Loan Payable (Details Textual) - USD ($)
3 Months Ended 9 Months Ended 57 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
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 $ 8,738,157   $ 8,738,157   $ 8,738,157    
Accrued Interest and Late Charges Payable 984,157   984,157   984,157    
Line of Credit Facility, Maximum Borrowing Capacity 7,754,000   7,754,000   7,754,000    
Repayments of Long-term Debt         2,001,000    
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 741,000   741,000   741,000    
Long-term Debt, Maturities, Repayments of Principal in Year Two 760,000   760,000   760,000    
Long-term Debt, Maturities, Repayments of Principal in Year Three 771,000   771,000   771,000    
Long-term Debt, Maturities, Repayments of Principal in Year Four 794,000   794,000   794,000    
Long-term Debt, Maturities, Repayments of Principal in Year Five 819,000   819,000   819,000    
Long-term Debt, Maturities, Repayments of Principal after Year Five 1,867,000   1,867,000   $ 1,867,000    
Interest Expense, Debt $ 49,373 $ 49,373 $ 148,121 $ 148,121      
Pennvest Loan [Member] | Amortization of Principal Number of Years [Member]              
Term Loan Payment Term     3 years        
Pennvest Loan [Member] | Interest Only Payments Number of Years [Member]              
Term Loan Payment Term     10 years        
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%