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Warranty (Tables)
12 Months Ended
Sep. 30, 2018
Warranty  
Schedule of warranty cost and accrual information

 

 

 

 

 

 

 

 

 

    

2018

    

2017

Warranty accrual as of October 1,

 

$

1,013,461

 

$

1,009,368

Accrued expense for fiscal year

 

 

(5,926)

 

 

219,390

Warranty cost incurred for fiscal year

 

 

(152,583)

 

 

(215,297)

Warranty accrual as of September 30,

 

$

854,952

 

$

1,013,461