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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Sep. 30, 2018
Accounting Policies [Abstract]  
Schedule of Changes in Warranty Liability

Changes in the Company’s warranty liability (included in accrued expenses) for the fiscal years ended September 30, 2018 and 2017 were as follows:

    2018     2017  
Balance at beginning of year   $ 431,000     $ 681,000  
Provision for warranties     139,000       124,000  
Expenses incurred     (216,000 )     (374,000 )
Balance at end of year   $ 354,000     $ 431,000