Note 8 - Notes Payable (Details) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Notes Payable	$ 734,327	$ 362,883
Debt Instrument, Maturity Date	Mar. 31, 2019
East 10th Street
Notes Payable	$ 384,012
Debt Instrument, Interest Rate, Stated Percentage	9.66%
Debt Instrument, Maturity Date	Jul. 01, 2036
Mad Creek
Notes Payable	$ 350,315
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Debt Instrument, Maturity Date	Nov. 01, 2036

Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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