XML 44 R29.htm IDEA: XBRL DOCUMENT v3.10.0.1
Summary of Significant Accounting Policies - Schedule of Changes in Warranty Liability (Details) - USD ($)
12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Accounting Policies [Abstract]    
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