Note 6 - Property, Plant and Equipment, Net - Schedule of Property, Plant, and Equipment (Details) - USD ($)	Dec. 31, 2017	Sep. 30, 2017	Sep. 30, 2016
Property Plant and Equipment, Gross	$ 7,566,302	$ 7,504,597	$ 5,075,191
Less accumulated depreciation	4,242,913	4,119,787	3,771,268
Property Plant & Equipment, Net	3,323,389	3,384,810	1,303,923
Land [Member]
Property Plant and Equipment, Gross	235,179	233,479	233,479
Building and Building Improvements [Member]
Property Plant and Equipment, Gross	2,239,763	2,195,915	1,448,978
Machinery and Equipment [Member]
Property Plant and Equipment, Gross	$ 5,091,360	$ 5,075,203	$ 3,392,734