Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

Intangible assets consisted of the following:

	March 31, 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	$	18,832	$	(8,777	)	$	10,055
Developed technology		11.5		9,829		(1,950	)		7,879
Non-compete		5.0		230		(127	)		103
Patents and other		16.5		2,321		(1,496	)		825
Subtotal				31,212		(12,350	)		18,862
Unamortized intangible assets:
In-process research and development				283		—			283
Trademarks and trade names				580		—			580
Total			$	32,075	$	(12,350	)	$	19,725

	September 30, 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	$	18,293	$	(7,834	)	$	10,459
Developed technology		11.7		9,297		(1,478	)		7,819
Non-compete		5.0		230		(103	)		127
Patents and other		16.5		2,321		(1,423	)		898
Subtotal				30,141		(10,838	)		19,303
Unamortized intangible assets:
In-process research and development				679		—			679
Trademarks and trade names				580		—			580
Total			$	31,400	$	(10,838	)	$	20,562

Estimated Amortization Expense

Based on the intangible assets in service as of March 31, 2018, 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, 2018, estimated amortization expense for the remainder of fiscal 2018 and each of the next five fiscal years is as follows (in thousands):

Remainder of 2018	$	1,398
2019		2,795
2020		2,620
2021		2,481
2022		2,441
2023		1,807