Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets consisted of the following:

	March 31, 2019
(Dollars in thousands)	Weighted Average Original Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Definite-lived intangible assets:
Customer lists and relationships		8.9	$	17,687	$	(10,022	)	$	7,665
Developed technology		11.5		9,563		(2,780	)		6,783
Non-compete		5.0		230		(173	)		57
Patents and other		16.5		2,321		(1,644	)		677
Subtotal				29,801		(14,619	)		15,182
Unamortized intangible assets:
In-process research and development				258		—			258
Trademarks and trade names				580		—			580
Total			$	30,639	$	(14,619	)	$	16,020

	September 30, 2018
(Dollars in thousands)	Weighted Average Original Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net
Definite-lived intangible assets:
Customer lists and relationships		8.9	$	18,086	$	(9,377	)	$	8,709
Developed technology		11.5		9,656		(2,361	)		7,295
Non-compete		5.0		230		(150	)		80
Patents and other		16.5		2,321		(1,569	)		752
Subtotal				30,293		(13,457	)		16,836
Unamortized intangible assets:
In-process research and development				267		—			267
Trademarks and trade names				580		—			580
Total			$	31,140	$	(13,457	)	$	17,683

Estimated Amortization Expense

Based on the intangible assets in service as of March 31, 2019, 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, 2019, estimated amortization expense for the remainder of fiscal 2019 and each of the next five fiscal years is as follows (in thousands):

Remainder of 2019	$	1,317
2020		2,458
2021		2,319
2022		2,279
2023		1,685
2024		1,611