Note 7 - Leases - Operating Lease Liability Cost (Details)	3 Months Ended
Mar. 31, 2019 USD ($)
Fixed	$ 64,702
Variable	5,449
Short-term	9,771
Total	79,922
Operating cash flows from operating leases	$ 68,561

Amount of lease cost recognized by lessee for lease contract.

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-Publisher FASB
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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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