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Note 6 - Loan Payable: (Detail) (USD $)
9 Months Ended 3 Months Ended 60 Months Ended 72 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Aug. 12, 2010
Mar. 31, 2013
Pennvest Loan [Member]
Mar. 31, 2012
Pennvest Loan [Member]
Dec. 31, 2013
Pennvest Loan [Member]
Dec. 31, 2019
Pennvest Loan [Member]
Construction Loan     $ 7,800,000 $ 7,754,000      
Debt Instrument, Interest Rate During Period           2.547% 3.184%
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 574,000            
Long-term Debt, Maturities, Repayments of Principal in Year Two 704,000            
Long-term Debt, Maturities, Repayments of Principal in Year Three 723,000            
Long-term Debt, Maturities, Repayments of Principal in Year Four 741,000            
Long-term Debt, Maturities, Repayments of Principal in Year Five 760,000            
Long-term Debt, Maturities, Repayments of Principal after Year Five 4,252,000            
Interest Expense, Debt 148,120 142,900   49,374 49,374    
Interest Costs Capitalized $ 15,793 $ 136,920