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Accounts Payable and Accrued Expenses (Detail) - Accounts payable and accrued expenses consist of the following - USD ($)
$ in Thousands
Sep. 30, 2017
Sep. 30, 2016
Payables and Accruals [Abstract]    
Accounts payable $ 10,941 $ 4,360
Line of Credit, Current 3,110 3,151
Commissions 269 269
Compensation and fringe benefits 2,147 2,139
Professional fees and shareholders' reporting costs 789 594
Taxes, other than income 866 353
Warranty 121 131
Other 602 935
Accounts payable and accrued expenses $ 18,845 $ 11,932