Annual report pursuant to Section 13 and 15(d)

Note E- Concentrations - Domestic and International Sales (Details)

v3.10.0.1
Note E- Concentrations - Domestic and International Sales (Details) - USD ($)
12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Net sales $ 77,651,354 $ 73,947,619 $ 75,287,726
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | UNITED STATES      
Net sales 72,295,000 67,901,000 71,264,000
Sales Revenue, Net [Member] | Geographic Concentration Risk [Member] | Non-US [Member]      
Net sales $ 5,356,000 $ 6,047,000 $ 4,024,000