Note 9 - Leases - Future Minimum Capital Lease Payments (Details)	Sep. 30, 2017 USD ($)
Minimum lease payment, 2018	$ 66,998
Interest, 2018	10,388
Present value of obligation, 2018	56,610
Minimum lease payment, 2019	63,039
Interest, 2019	6,374
Present value of obligation, 2019	56,665
Minimum lease payment, 2020	51,999
Interest, 2020	2,697
Present value of obligation, 2020	49,302
Minimum lease payment, 2021	15,551
Interest, 2021	203
Present value of obligation, 2021	15,348
Minimum lease payment, 2022
Interest, 2022
Present value of obligation, 2022
Minimum lease payment	197,587
Interest	19,662
Present value of obligation	$ 177,925