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Note 6 - Long-term Debt (Details) - Summary of Future Annual Loan Repayments for Long Term Debt
Jun. 30, 2015
USD ($)
Summary of Future Annual Loan Repayments for Long Term Debt [Abstract]  
2015 $ 10,576,000
2016 17,570,000
2017 8,775,000
2018 3,900,000
Thereafter 9,000,000
Total $ 49,821,000