Annual report pursuant to Section 13 and 15(d)

Operating Leases And Rental Expense (Schedule Of Operating Lease Expense, Including Real Estate Taxes And Insurance) (Details)

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Operating Leases And Rental Expense (Schedule Of Operating Lease Expense, Including Real Estate Taxes And Insurance) (Details) - USD ($)
 12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Operating Leased Assets [Line Items]      
Operating lease expense $ 505,298 $ 471,132 $ 477,436
Factory and Office Leases [Member]      
Operating Leased Assets [Line Items]      
Operating lease expense 482,182 455,956 470,049
Other [Member]      
Operating Leased Assets [Line Items]      
Operating lease expense $ 23,116 $ 15,176 $ 7,387