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Accounts Payable and Accrued Expenses (Detail) - Accounts payable and accrued expenses consist of the following - USD ($)
$ in Thousands
Sep. 30, 2018
Sep. 30, 2017
Payables and Accruals [Abstract]    
Accounts payable $ 4,466 $ 8,120
Line of Credit, Current 3,247 3,110
Commissions 312 269
Compensation and fringe benefits 1,836 1,528
Professional fees and shareholders' reporting costs 308 491
Taxes, other than income 313 854
Warranty 108 121
Other 1,934 402
Accounts payable and accrued expenses $ 12,524 $ 14,895