Accrued Expenses and Other Current Liabilities (Schedule of Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jul. 31, 2016	Sep. 30, 2015
Payables and Accruals [Abstract]
Compensation	$ 3,628		$ 3,036
Warranty	871		1,664
Termination fee	0	$ 2,900	2,775
Professional fees	761		1,147
Customer deposits	38		133
Deferred revenue	0		65
Self insurance	25		606
Income and other taxes	944		1,038
Severance and restructuring accruals	642		1,448
Other	775		1,190
Accrued expenses and other current liabilities	$ 7,684		$ 13,102