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Note 6 - Commitments (Details Textual) - Jun. 30, 2015
USD ($)
ft²
Number of Successive Renewal Options 2
Lessee Leasing Arrangements, Operating Leases, Renewal Term 1 year
Area of Real Estate Property | ft² 8,400
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year $ 73,046
Unrecorded Unconditional Purchase Obligation $ 115,300