Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2017

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible assets consisted of the following:

	March 31, 2017
(Dollars in thousands)	Weighted Average Original Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Definite-lived intangible assets:
Customer lists and relationships		8.9	$	17,187	$	(6,842	)	$	10,345
Core technology		8.0		530		(530	)		—
Developed technology		11.8		9,077		(1,012	)		8,065
Non-compete		5.0		230		(81	)		149
Patents and other		16.5		2,321		(1,349	)		972
Subtotal				29,345		(9,814	)		19,531
Unamortized intangible assets:
In-process research and development				945		—			945
Trademarks and trade names				642		—			642
Total			$	30,932	$	(9,814	)	$	21,118

	September 30, 2016
(Dollars in thousands)	Weighted Average Original Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Definite-lived intangible assets:
Customer lists and relationships		8.9	$	17,692	$	(6,123	)	$	11,569
Core technology		8.0		530		(530	)		—
Developed technology		11.8		8,724		(618	)		8,106
Non-compete		5.0		230		(58	)		172
Patents and other		16.5		2,321		(1,275	)		1,046
Subtotal				29,497		(8,604	)		20,893
Unamortized intangible assets:
In-process research and development				987		—			987
Trademarks and trade names				645		—			645
Total			$	31,129	$	(8,604	)	$	22,525

Estimated Amortization Expense

Based on the intangible assets in service as of March 31, 2017, excluding any possible future amortization associated with acquired in-process research and development (“IPR&D”), which has not met technological feasibility as of March 31, 2017, estimated amortization expense for the remainder of fiscal 2017 and each of the next five fiscal years is as follows:

(Dollars in thousands)
Remainder of 2017	$	1,278
2018		2,510
2019		2,510
2020		2,335
2021		2,196
2022		2,156